Displacer Kitten + Great Whale + Viscerid Armor

Displacer Kitten

Great Whale

Viscerid Armor

How it works

1. Activate up to seven lands you control by tapping them, adding at least 2
2. Cast Viscerid Armor by paying its mana cost, targeting Displacer Kitten
3. Displacer Kitten triggers, blinking Great Whale.
4. When Great Whale enters the battlefield, it triggers, untapping up to seven lands.
5. Resolve the Viscerid Armor spell.
6. Activate Viscerid Armor by paying 1, returning it from the battlefield to your hand.
7. Repeat.

This ingenious loop turns a modest aura into a catastrophic engine by leveraging Displacer Kitten's avoidance trigger every time you recast it. By casting Viscerid Armor, you trigger the Kitten to blink Great Whale, which immediately enters the battlefield to untap your lands and replenish the mana you just spent. From there, you simply bounce the Armor back to your hand using its own activated ability for a cheap {1}{U}, leaving you free to replay it and repeat the whole cycle. Because Viscerid Armor can be cast over and over, you easily generate infinite mana, storm count, and endless entry and leave-the-battlefield triggers.