Combos with The World Tree

Activate The World Tree's second ability by paying {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, tapping and sacrificing it, causing you to search for all creatures in your library, as they are all Gods due to Maskwood Nexus and put them onto the battlefield.

1. Activate The World Tree's second ability by paying {W}{W}{U}{U}{U}{B}{B}{R}{R}{G}{G}, 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. When the Gods enter the battlefield, Purphoros triggers for each God that entered except itself, if applicable.
3. Resolve all Purphoros triggers, dealing damage to each opponent equal to twice the number of Gods that entered the battlefield.

Activate The World Tree's second ability by paying {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, tapping and sacrificing it, causing you to search for all creatures in your library, as they are all Gods due to Arcane Adaptation and put them onto the battlefield.

Activate The World Tree's second ability by paying {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, tapping and sacrificing it, causing you to search for all creatures in your library, as they are all Gods due to Rukarumel and put them onto the battlefield.

Activate The World Tree's second ability by paying {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, tapping and sacrificing it, causing you to search for all creatures in your library, as they are all Gods due to Leyline of Transformation and put them onto the battlefield.

Activate The World Tree's second ability by paying {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, tapping and sacrificing it, causing you to search for all creatures in your library, as they are all Gods due to Conspiracy and put them onto the battlefield.