The Great Forest

Each creature assigns combat damage equal to its toughness rather than its power.
Whenever chaos ensues, creatures you control get +0/+2 and gain trample until end of turn.

Each creature assigns combat damage equal to its toughness rather than its power.
Whenever you roll chaos, creatures you control get +0/+2 and gain trample until end of turn.

March of the Machine Commander

Planechase Anthology Planes

Each creature assigns combat damage equal to its toughness rather than its power.
Whenever you roll CHAOS, creatures you control get +0/+2 and gain trample until end of turn.