Infinite card drawInfinite draw triggersNear-infinite landfall triggersNear-infinite lifegainNear-infinite lifegain triggersNear-infinitely large creature until end of turnNear-infinite magecraft triggersNear-infinite mana lands you control can produceNear-infinite storm count
How it works
Activate Mystic Sanctuary and two Plains by tapping them, adding at least 1.
Activate Thaumatog's first ability three times by sacrificing Mystic Sanctuary and two Plains, giving Thaumatog +3/+3 until end of turn.
Cast Second Sunrise by paying 1, returning all land cards put into your graveyard this turn to the battlefield untapped due to Archelos.
When each land enters the battlefield, Tatyova triggers that many times, and Mystic Sanctuary triggers once.
Resolve the Mystic Sanctuary trigger, putting Second Sunrise on top of your library from your graveyard.
Resolve the Tatyova triggers, causing you to draw that many cards and gain that much life.
Repeat.
If you control additional lands, you may sacrifice them as well to get additional mana and triggers.
This intricate loop is a masterclass in recycling resources, anchored by Archelos, Lagoon Mystic, whose static ability ensures that when your lands return, they do so completely untapped. You feed your lands—including Mystic Sanctuary—to Thaumatog to pump its power, sending those key pieces straight to the graveyard where Second Sunrise can reach them. When you cast Second Sunrise, it brings everything right back, immediately letting Mystic Sanctuary trigger to put that very same spell back on top of your library. Meanwhile, Tatyova, Benthic Druid watches the land-fall parade with her watchful eye, turning every iteration into a cascade of drawn cards and gained life.