Rimefeather Owl + Rime Tender + Freed from the Real

Prerequisites

Freed from the Real attached to Rime Tender. Rime Tender does not have summoning sickness. You control a permanent that can tap to produce at least {1}{U}.

Steps

1. Activate a permanent you control by tapping it, adding at least {1}{U}.
2. Activate Rimefeather Owl by paying {1}{S}, putting a snow counter on the mana producing permanent, causing the permanent to become a snow permanent.
3. Activate Rime Tender by tapping it, untapping the mana producing permanent.
4. Activate Freed from the Real's second ability by paying {U}, untapping Rime Tender.
5. Activate the permanent with the snow counter on it by tapping it, adding at least {1}{U}.
6. Repeat from step 3.