Palinchron + Vadrok, Apex of Thunder + Heat Shimmer + Training Grounds

Palinchron

Vadrok, Apex of Thunder

Heat Shimmer

Training Grounds

How it works

1. Cast Palinchron.
2. When Palinchron enters the battlefield, you can untap 7 lands.
3. untap lands to produce 2W/U.
4. Cast Vadrok, Apex of Thunder for its mutate cost under Palinchron.
5. When Vadrok, Apex of Thunder successfully mutates you can cast Heat Shimmer from your graveyard for free.
6. Cast Heat Shimmer from your graveyard to make a token copy of Palinchron.
7. When the token copy of Palinchron enters the battlefield in response to its ability, return the original Palinchron to your hand with its ability.
8. Repeat.