Yuna, Grand Summoner + Ioreth of the Healing House + Saryth, the Viper's Fang
Infinite +1/+1 counters on a creature
Activate Yuna by tapping it, adding and causing the next creature spell you cast to enter with two +1/+1 counters on it.
Activate Saryth by paying and tapping it, untapping Ioreth.
Activate Ioreth's second ability by tapping it, untapping Saryth and Yuna.
Repeat an arbitrarily large number of times.
Cast a creature spell, causing it to enter the battlefield with infinite +1/+1 counters due to Yuna.
Component Cards
How It Works
Activate Yuna by tapping it, adding and causing the next creature spell you cast to enter with two +1/+1 counters on it.
Activate Saryth by paying and tapping it, untapping Ioreth.
Activate Ioreth's second ability by tapping it, untapping Saryth and Yuna.
Repeat an arbitrarily large number of times.
Cast a creature spell, causing it to enter the battlefield with infinite +1/+1 counters due to Yuna.