Basking Broodscale + Cathars' Crusade + Host of the Hereafter

Basking Broodscale

Cathars' Crusade

Host of the Hereafter

How it works

1. Cast Basking Broodscale by paying 1.
2. When Basking Broodscale enters, Cathars' Crusade triggers, putting a +1/+1 counter on Basking Broodscale.
3. Basking Broodscale triggers, creating a 0/1 Eldrazi Spawn creature token.
4. When the Eldrazi Spawn enters, Cathars' Crusade triggers, putting a +1/+1 counter on the Eldrazi Spawn.
5. Activate the Eldrazi Spawn by sacrificing it, adding C.
6. When the Eldrazi Spawn dies, Host of the Hereafter triggers, putting a +1/+1 counter on Basking Broodscale.
7. Repeat from step 3.
8. Activate Basking Broodscale's adapt ability by paying 1, putting a +1/+1 counter on it.
9. Basking Broodscale triggers, creating a 0/1 Eldrazi Spawn creature token.
10. When the Eldrazi Spawn enters the battlefield, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control.
11. Repeat from step 2.