The World Tree + Purphoros, God of the Forge

Prerequisites

—

Steps

1. 1Activate The World Tree's second ability by paying , tapping and sacrificing it, searching your library for Purphoros, if needed, and every other God and/or creature with changeling in your library and put them onto the battlefield.
2. 2When the Gods enter the battlefield, Purphoros triggers for each God that entered except itself, if applicable.
3. 3Resolve all Purphoros triggers, dealing damage to each opponent equal to twice the number of Gods that entered the battlefield.

Effects

• Near-infinite damage