Hatchery Sliver + Ornithopter + Leyline of Transformation

Prerequisites

• "Sliver" chosen with Leyline of Transformation.

Steps

1. 1Cast Ornithopter by paying , and choosing to pay its replicate cost an arbitrarily large number of times by paying .
2. 2Ornithopter triggers, creating a copy of it for each time its replicate cost was paid.
3. 3Resolve all Ornithopter spells, causing the nontoken Ornithopter to enter the battlefield, and creating a token copy of it for each time its replicate cost was paid.

Effects

• Infinite creature ETB
• Infinite creature tokens