Urza's Engine 5
Artifact Creature — Juggernaut
Trample

3: This creature gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature s combat damage, not its controller, among any of the creatures it s being blocked by or is blocking.)

3: Attacking creatures banded with this creature gain trample until end of turn.