Greed + Horizon Chimera + Teferi's Ageless Insight + Incubation Druid + Tolarian Kraken

Greed

Horizon Chimera

Teferi's Ageless Insight

Incubation Druid

Tolarian Kraken

How it works

1. Activate Incubation Druid by tapping it, adding .
2. Activate Greed by paying and two life, causing you to draw two cards.
3. Horizon Chimera and Tolarian Kraken each trigger twice.
4. Resolve both Horizon Chimera triggers, causing you to gain two life.
5. Resolve the first Tolarian Kraken trigger, choosing not to pay.
6. Resolve the second Tolarian Kraken trigger, causing you to pay 1 to untap Incubation Druid.
7. Repeat.