Battered Golem, and Splinter Twin

Prerequisites

• Battered Golem on the battlefield
• Splinter Twin on the battlefield
• Splinter Twin attached to Battered Golem
• Battered Golem does not have summoning sickness

Steps

1. Tap Battered Golem, making a token copy of itself
2. When the token ETBs, each other Battered Golem triggers, untapping them
3. Repeat for infinite Battered Golem tokens with haste

Results

• Infinite creature tokens with haste