Gacha Mechanism

{t}, Tap two untapped modified creatures you
control: Draw a Card.
{3} or sacrifice a Treasure: Roll a d20.
1-9| Put a +1/+1 counter on target creature.
10-16| Put a first strike, haste, menace, reach,
trample or vigilance counter on target creature.
17-19| Put a deathtouch, double strike, flying or lifelink counter on target creature.
20| Put a hexproof or indestructible counter
on target creature.