Infinite card drawInfinite draw triggersNear-infinite damage to some creaturesNear-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, a Forest and two other lands by tapping them, adding at least 3.
Activate Spitting Spider four times by sacrificing Mystic Sanctuary, a Forest and two other lands, dealing 4 damage to each creature with flying.
Cast Splendid Reclamation by paying 3, returning all land cards from your graveyard to the battlefield untapped due to Archelos.
When each land enters the battlefield, Aesi triggers that many times, and Mystic Sanctuary triggers once.
Resolve the Mystic Sanctuary trigger, putting Splendid Reclamation on top of your library from your graveyard.
Resolve the Aesi triggers, causing you to draw that many cards.
Repeat.
If you control additional lands, you may sacrifice them as well to get additional mana and triggers.
This looping engine turns a graveyard full of lands into a self-sustaining storm of resources, anchored by Archelos, Lagoon Mystic ensuring that every land entering the battlefield comes in untapped instead of tapped. When you cast Splendid Reclamation, it floods the battlefield with all your sacrificed lands, which immediately triggers Aesi, Tyrant of Gyre Strait to draw you a flood of cards. Crucially, one of those returning lands is Mystic Sanctuary, whose entry trigger lets you place Splendid Reclamation right back on top of your library to draw and recast it. Meanwhile, Spitting Spider serves as a convenient sacrifice outlet to bin your lands in the first place while clearing the skies of opposing flyers.