Heaven’s Notice

Whenever a creature enters your battlefield, put a heaven counter on this.
0-2: Whenever a creature enters the battlefield, Gain 1 life
3-6: Whenever a non-token creature you control dies, create a 1/1 white spirit
7-10: Whenever a non-token creature you control dies, create a 2/2 white Angel with flying
11+: Whenever you gain life, give that many +1/+1 counters to target creature