Heidar, Rimewind Master + Parallax Tide + Retreat to Coralhelm + High Tide

Prerequisites

• You control at least four untapped Islands.
• Heidar does not have summoning sickness.
• You control at least four snow permanents.

Steps

1. 1Cast High Tide by paying .
2. 2Activate four Islands by tapping them, adding .
3. 3High Tide triggers, adding .
4. 4Cast Parallax Tide by paying .
5. 5Activate Parallax Tide four times by removing four fade counters from it, exiling the four tapped Islands.
6. 6Activate Heidar by paying and tapping it, returning Parallax Tide from the battlefield to your hand.
7. 7When Parallax Tide leaves the battlefield, it triggers, returning all cards exiled with it to the battlefield.
8. 8When 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.
9. 9Repeat 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