Ba Sing Se + Ashnod's Altar + Amulet of Vigor + Lotus Cobra

Ba Sing Se

Ashnod's Altar

Amulet of Vigor

Lotus Cobra

How it works

1. Activate Ba Sing Se's second ability by paying 2 and tapping it, earthbending itself.
2. Activate Ashnod's Altar by sacrificing Ba Sing Se, adding CC.
3. When Ba Sing Se dies, it triggers, returning itself from your graveyard to the battlefield tapped.
4. When Ba Sing Se enters, Lotus Cobra and Amulet of Vigor trigger.
5. Resolve the Lotus Cobra trigger, adding .
6. Resolve the Amulet of Vigor trigger, untapping Ba Sing Se.
7. Repeat.