Felidar Guardian + Angel of Indemnity + Phantom Train

Felidar Guardian

Angel of Indemnity

Phantom Train

How it works

1. Cast Felidar Guardian by paying its mana cost.
2. When Felidar Guardian enters the battlefield, it triggers, targeting Angel of Indemnity.
3. Holding priority, activate Phantom Train by sacrificing Felidar Guardian.
4. Resolve the Felidar Guardian ability, blinking Angel of Indemnity.
5. When Angel of Indemnity enters the battlefield, it triggers, returning Felidar Guardian from your graveyard to the battlefield.
6. Repeat from step 2.