Zhongli, Rex Lapis

Whenever an creature you control with a +1/+1 counter attacks, create a Treasure Token.
As long as you control 6 or more Treasure tokens, Zhongli, Rex Lapis has indestructible and flying,
and is a Dragon God in addition to its other
types.
{t},Sacrifice a Treasure: Put a +1/+1 counter
on target creature you control