Sentinels of the Multiverse just some thoughts

 Some basic situations.

Turn Order

1. Villain Turn
2. Hero Turns (3-5)
3. Environment Turn
4. Rinse Repeat

Villain Turn Order

1. Start of Turn Effects
2. Play Card
3. End of Turn Effects 

Hero Turn Order

1. Start of Turn Effects
2. Play a Card (by default only 1 Card)
   
3. Use a Power (by default only 1 Power)
   
4. Draw a Card (if you skip BOTH steps 2 and 3 you draw an extra card)
5. End of Turn Effects