Activate Yuna by tapping it, adding {U} and causing the next creature spell you cast to enter the battlefield with two additional +1/+1 counters on it.
Activate Freed from the Real by paying {U}, untapping Yuna.
Repeat an arbitrarily large number of times.
Active Yuna by tapping it, adding one mana of any color and causing the next creature spell you cast to enter the battlefield with two additional +1/+1 counters on it.
Cast any creature spell by casting its mana cost, triggering Yuna an infinite number of times, causing that creature to enter the battlefield with infinite +1/+1 counters on it.

Infinite +1/+1 counters on a creature

Yuna, Grand Summoner

Freed from the Real

Activate Yuna by tapping it, adding {1} and causing the next creature spell you cast to enter with two +1/+1 counters on it.
Activate Saryth by paying {1} 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.

Combos with "Yuna, Grand Summoner"