Ornery Dilophosaur
Creature — Dinosaur
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Whenever this creature attacks, if you control a creature with power 4 or greater, this creature gets +2/+2 until end of turn.
Jonathan Kuo
Core Set 2021 (M21)
• #194Rulings
Ornery Dilophosaur gets just +2/+2, no matter how many creatures you control with power 4 or greater.
(wotc • 2020-06-23)
If Ornery Dilophosaur's power is raised to 4 or greater, its ability triggers when it attacks.
(wotc • 2020-06-23)
Once Ornery Dilophosaur's ability has resolved, it keeps +2/+2 for the rest of the turn even if you no longer control a creature with power 4 or greater.
(wotc • 2020-06-23)
If you don't control a creature with power 4 or greater immediately after Ornery Dilophosaur attacks, its ability doesn't trigger. If you don't control one as the ability resolves, it has no effect. It doesn't have to be the same creature at both times, however.
(wotc • 2020-06-23)
Rulings
Ornery Dilophosaur gets just +2/+2, no matter how many creatures you control with power 4 or greater.
(wotc • 2020-06-23)
If Ornery Dilophosaur's power is raised to 4 or greater, its ability triggers when it attacks.
(wotc • 2020-06-23)
Once Ornery Dilophosaur's ability has resolved, it keeps +2/+2 for the rest of the turn even if you no longer control a creature with power 4 or greater.
(wotc • 2020-06-23)
If you don't control a creature with power 4 or greater immediately after Ornery Dilophosaur attacks, its ability doesn't trigger. If you don't control one as the ability resolves, it has no effect. It doesn't have to be the same creature at both times, however.
(wotc • 2020-06-23)