Scholar of Athreos + Crystalline Crawler + Light of Promise

Scholar of Athreos

Crystalline Crawler

Light of Promise

How it works

1. Activate Scholar of Athreos by paying 2, causing each opponent to lose 1 life and you to gain life equal to the life lost this way.
2. Crystalline Crawler triggers, putting that many +1/+1 counters on it.
3. Activate Crystalline Crawler three times by removing three +1/+1 counters from it, adding 2.
4. Repeat.