Azlask, the Swelling Scourge + Devoted Druid + Chromatic Orrery

Azlask, the Swelling Scourge

Devoted Druid

Chromatic Orrery

How it works

1. Activate Azlask by paying 5, giving each creature you control +1/+1 until end of turn for each experience counter you have.
2. Activate Devoted Druid's first ability by tapping it, adding .
3. Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
4. Repeat steps 2 and 3 four additional times.
5. Repeat from step 1.