Crackdown Construct + Gigantoplasm

Crackdown Construct

Gigantoplasm

How it works

1. Activate Gigantoplasm by paying 0.
2. Crackdown Construct and Gigantoplasm trigger, giving themselves +1/+1 until end of turn.
3. Repeat.

This ingenious loop relies on a clever mechanical interaction between Gigantoplasm and Crackdown Construct. Because Gigantoplasm's copy ability includes a {0} activation cost and is not a mana ability, paying {0} to activate it triggers itself as a creature, which in turn feeds the non-mana ability trigger of Crackdown Construct. Since you can repeat this process as many times as you like, Crackdown Construct grows to astronomical proportions while Gigantoplasm can also utilize its own {X} ability to become whatever size you need, granting you massive power and toughness to sweep away opponents in a single swing.