Sukuna's Finger

When Sukuna's Finger enters the battlefield target permanent you control becomes a Vessel. At The beginning of your upkeep, you gain 2 Digestion counters. If you have 20 or more Digestion Counters, transform Sukuna's Finger. Otherwise
put a +1/+1 counter on a Vessel, you control.

If a vessel you control would leave the battlefield return Sukuna's Finger to its owner's
hand.
. -> 6/6