Precon Upgrade Guide
Tramplesaurus Rex Upgrade Guide
What to cut, what to add, and how to play the mono-green big-creature precon from the Foundations Commander decks, commanded by Ghalta, Primal Hunger.
Picking this precon up?
Shown here is the commander's card art, not the box.
Buy Tramplesaurus Rex on TCGplayer →Quick verdict
Tramplesaurus Rex is the most honest deck in the Foundations lineup: play mana creatures, play large creatures, attack. Ghalta's printed cost is twelve mana and the deck is built so you almost never pay it — two 5/4s on the battlefield and she costs three. That is a genuinely good lesson for a new player, and the deck teaches it without asking for a single complicated decision. The weakness is that a deck whose answer to everything is "a bigger creature" has almost no interaction: four instants that deal with a creature, two artifact answers, and nothing at all for an enchantment-based lock.
TurnZero rates Tramplesaurus Rex a 3 out of 5 on strength and a 1 out of 5 on difficulty — tied with Calling All Angels as the easiest of the five to pilot correctly. See it alongside every other precon we cover on the precon directory.
How the precon plays
Ghalta, Primal Hunger costs {X} less to cast where X is the total power of the creatures you control. The deck's job is therefore to put power on the battlefield early and cheaply, which is why it runs six mana creatures and a run of aggressively-statted three- and four-drops — Steel Leaf Champion at 5/4 for {G}{G}{G}, Regal Imperiosaur at 5/4 for three, Pugnacious Hammerskull at 6/6 for three, and Terrian, World Tyrant at 9/7 for five.
Those same big bodies turn on the card draw. Colossal Majesty , Elemental Bond , Garruk's Uprising and Garruk's Packleader all pay you for playing creatures this size, and Rishkar's Expertise draws cards equal to your largest creature's power and then casts a spell for free. Whisperer of the Wilds and Ilysian Caryatid both double their mana once you control a creature with power 4 or greater.
Trample is what stops a wall of chump blockers from holding the deck off. Garruk's Uprising gives the whole board trample and Overwhelming Stampede adds it alongside a +X/+X equal to your biggest creature's power, which is the deck's clearest "you win this turn" card. Unnatural Growth doubles every creature's power and toughness at each combat, and Ram Through and Bite Down turn a huge creature into removal without attacking at all.
What works out of the box
Garruk's Uprising ↗
Draws a card on arrival, gives every creature trample, and draws again on each big creature that enters. Three mana doing three of the deck's jobs.
Overwhelming Stampede ↗
Trample plus +X/+X equal to your largest creature's power. With Ghalta on the board this is frequently lethal to the whole table at once.
Elder Gargaroth ↗
Six power with reach, vigilance and trample that makes a 3/3, gains 3, or draws a card every time it attacks or blocks. Excellent on both sides of combat.
Rishkar's Expertise ↗
Draws cards equal to your biggest creature's power — often seven or more — then casts a five-drop from hand for free.
Unnatural Growth ↗
Doubles the power and toughness of everything you control at each combat, which turns a board that was even into one that ends the game.
Surrak and Goreclaw ↗
Trample for the team, plus a counter and haste on every nontoken creature you cast. It makes each new threat attack the turn it lands.
What needs improvement
Interaction is the real gap. Beast Within , Ram Through , Bite Down , Monstrous Onslaught and Kenrith's Transformation are the answers, and every one of them is aimed at a creature. A table that wins with an enchantment, an artifact combo or a planeswalker gets to do it unopposed. See how much removal to run →.
The deck is also the easiest of the five to blow out with a single board wipe: it commits everything to the battlefield by design, and the only protection in the 99 is Tamiyo's Safekeeping and Swiftfoot Boots . Two more protection spells is the highest-leverage change the list can take. See how much protection to run →.
10 cards to cut
Each of these has a real function. None of them earns its slot in this specific 99.
Pugnacious Hammerskull is a 6/6 for three that stuns itself every time it attacks without another Dinosaur out — and the deck runs too few Dinosaurs to rely on that clause.
Arachnogenesis is a defensive combat trick for a deck that is almost never the one being attacked.
Arasta of the Endless Web makes 1/2 Spiders off opponents' spells. Small bodies do nothing for Ghalta's cost reduction and nothing for the attack.
Whiptongue Hydra destroys all creatures with flying, which is a narrow sweeper that might hit nothing at all.
Scrapshooter asks you to gift an opponent a card to get its effect, and the artifact-or-enchantment destruction is a mode the deck rarely reaches for at that price.
Clifftop Lookout is a 1/2 that finds one land. The deck's other mana creatures leave power behind that Ghalta counts; this one doesn't.
Curious Altisaur only draws when a Dinosaur connects, in a deck with a handful of Dinosaurs and no evasion to get them through.
Tangleweave Armor is four mana for a Germ token that grows with the largest mana value you control — a slow way to make one creature big in a deck full of big creatures.
Ezuri's Predation costs eight and is excellent against a wide board and dead against a tall one. The deck cannot afford an eight-drop that sometimes does nothing.
Collective Resistance scales by paying {G} per extra mode, but each mode is narrow and the hexproof rider rarely lines up when you need it.
First upgrades
Budget, first
Heroic Intervention ↗
Two mana, hexproof and indestructible for everything you control. The single best answer to the board wipe this deck is built to lose to.
Return of the Wildspeaker ↗
Draws cards equal to the greatest power among your non-Human creatures, or gives them +3/+3. With Ghalta out, the draw mode is frequently a dozen cards.
Nature's Claim ↗
One mana to destroy the artifact or enchantment the deck otherwise has no answer to. The four life it gives back rarely matters.
Next
Nyxbloom Ancient ↗
Triples the mana from every land and dork, and its own 5/5 trample body counts toward Ghalta's cost reduction on the way in.
Greater Good ↗
Sacrifice a huge creature, draw that many cards. Turns the removal spell aimed at Ghalta into a refill instead of a loss.
Vorinclex, Voice of Hunger ↗
Doubles your own land mana while halving everyone else's — the hardest single card in green for a table to play through.
Snake Umbra ↗
Umbra armor soaks the removal spell aimed at your biggest creature, and the enchanted creature draws a card every time it connects. Two problems, one aura.
Higher-investment
Craterhoof Behemoth ↗
Haste and +X/+X with trample for the whole board. The definitive green finisher, and Ghalta makes casting it easy.
Sylvan Library ↗
Fixes the deck's only real card-selection problem for two mana, and the life payment is one this deck can afford.
Nykthos, Shrine to Nyx ↗
With this many green pips on the battlefield it is the single biggest mana source the deck can run, and it turns one big turn into two.
Win conditions
The upgraded deck wins the same way the precon does: a board of oversized creatures, trample from Garruk's Uprising , and one attack that Overwhelming Stampede or Unnatural Growth makes lethal across the table. Heroic Intervention is what makes that plan reliable rather than hopeful — it is the difference between a deck that loses to the first wrath and one that makes the table find a second.
The upgraded 99, in shape
The finished list cuts the defensive cards, the narrow sweepers, and the small bodies that don't feed Ghalta's cost reduction. In go protection, one answer that isn't pointed at a creature, and a draw spell that reads the board this deck actually builds. Nothing about the game plan changes — mana creatures, then big creatures, then one attack — it just survives long enough to get to the attack.
Who should buy this precon
The best first deck of the five for a player who wants to learn how mana and curve work, because this deck makes both visible: every mana creature you play shows up as a cheaper Ghalta two turns later. It is a weaker fit for a player who wants to interact — the deck is close to a solitaire game against a table that leaves it alone, and it has very little to say to one that doesn't.
Track how the upgrades actually perform.
TurnZero HQ keeps a win rate per deck version, so you can change ten cards, play ten games, and see the difference instead of guessing.
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