Task Force + Crookclaw Transmuter + Lightning Greaves

Task Force

Crookclaw Transmuter

Lightning Greaves

How it works

1. Activate Lightning Greaves' equip ability by paying 0, targeting Task Force.
2. Task Force triggers, giving itself +0/+3 until end of turn.
3. Resolve the Lightning Greaves ability, attaching it to Task Force.
4. Activate Lightning Greaves' equip ability by paying 0, attaching it to another creature you control.
5. Repeat an arbitrarily large number of times.
6. Cast Crookclaw Transmuter by paying 3.
7. Crookclaw Transmuter enters the battlefield, switching Task Force's power and toughness until end of turn.
8. Deal combat damage to an opponent with Task Force, causing the opponent to lose the game due to having zero or less life.