ss: ascendant spirit becomes a spirit warrior with base power and toughness 2/3.
sss: if ascendant spirit is a warrior, put a flying counter on it and it becomes a spirit warrior angel with base power and toughness 4/4.
ssss: if ascendant spirit is an angel, put two +1/+1 counters on it and it gains "whenever this creature deals combat damage to a player, draw a card."