Infinite +1/+1 counters on certain creatures, Infinite ETB, Infinite LTB, Infinite storm count, Infinite +1/+1 counters on a creature
Cast Endless One, choosing one for X, but paying due to Animar.
Animar triggers, putting a +1/+1 counter on itself.
Endless One enters the battlefield, triggering Cloudstone Curio, returning Ugin's Conjurant from the battlefield to your hand.
Cast Ugin's Conjurant, choosing one for X, but paying due to Animar.
Animar triggers, putting a +1/+1 counter on itself.
Ugin's Conjurant enters the battlefield, triggering Cloudstone Curio, returning Endless One from the battlefield to your hand.
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Component Cards
How It Works
Cast Endless One, choosing one for X, but paying due to Animar.
Animar triggers, putting a +1/+1 counter on itself.
Endless One enters the battlefield, triggering Cloudstone Curio, returning Ugin's Conjurant from the battlefield to your hand.
Cast Ugin's Conjurant, choosing one for X, but paying due to Animar.
Animar triggers, putting a +1/+1 counter on itself.
Ugin's Conjurant enters the battlefield, triggering Cloudstone Curio, returning Endless One from the battlefield to your hand.
Repeat.