Swallower of Souls

Trample
Spirits Ruse- When Swallower of Souls deals
combat damage to a player target opponent
chooses either:
Destroy anoher target creature, put X +1/+1
counters on Swallower of Souls where X is that
creatures Mana Value
Or, tap Swallower of Souls it does not untap on
it's controllers next untap step.