Heidar, Rimewind Master + Parallax Tide + Retreat to Coralhelm + Caged Sun

Prerequisites

• You control at least four untapped Islands.
• Heidar does not have summoning sickness.
• You control at least four snow permanents.
• "Blue" chosen with Caged Sun.

Steps

1. 1Activate four Islands by tapping them, adding .
2. 2Caged Sun triggers, adding .
3. 3Cast Parallax Tide by paying .
4. 4Activate Parallax Tide four times by removing four fade counters from it, exiling the four tapped Islands.
5. 5Activate Heidar by paying and tapping it, returning Parallax Tide from the battlefield to your hand.
6. 6When Parallax Tide leaves the battlefield, it triggers, returning all cards exiled with it to the battlefield.
7. 7When the Islands enter the battlefield, Retreat to Coralhelm triggers four times, untapping Heidar, and allowing you to untap up to three other creatures you control and/or scry 1 up to three times.
8. 8Repeat from step 2.

Effects

• Infinite blinking of lands
• Infinite landfall triggers
• Infinite mana basic lands you control can produce
• Infinite mana creatures you control can produce
• Infinite scry 1
• Infinite storm count
• Infinite untap of creatures you control