Sunfrill Imitator

The clever bit is where the copy stops. Most attack-triggered clone effects hand you the target's stats and abilities and leave you rebuilding the trigger from scratch next turn, but the exclusion clause here keeps the imitation ability stapled on: it stays Sunfrill Imitator in name, and it retains this copy ability, so every combat it survives to make can point at a different Dinosaur. That self-referential rider is doing the real design work. It converts a one-shot combat trick into a repeatable shapeshift, letting a 3/3 become whatever the board needs on a given swing: the biggest beater when you want to push damage, a fresh keyword suite when you need trample or menace to connect, a replacement threat when the original got answered. Note the timing carefully, though: the copy happens after attackers are declared, so it will not fire "enters the battlefield" abilities (the creature never leaves the field) or "whenever this creature attacks" triggers (that step has passed). All it delivers is a body that stats up to match whatever you already control, mid-combat. The trigger is targeted and public, so opponents see exactly which Dinosaur it wants and can respond before it resolves; the imitation is not a surprise so much as a commitment you make once attackers are on the board. It is a green take on a tribe that usually wants raw size, offering redundancy of effect instead of another fatty, and asking the deck to supply the Dinosaurs worth becoming.