Emry, Lurker of the Loch + Displacer Kitten + Great Oak Guardian + Urza's Bauble
Emry, Lurker of the Loch
Displacer Kitten
Great Oak Guardian
Urza's Bauble
Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite creature LTBInfinite creature ETBInfinite storm countInfinite untap of creatures you controlInfinite mana creatures you control can produceInfinite card draw at the beginning of the next upkeepInfinitely large creatures you control until end of turnInfinite draw triggers at the beginning of the next upkeep
How it works
Activate Emry by tapping it, targeting Urza's Bauble.
Cast Urza's Bauble from your graveyard by paying 0.
Displacer Kitten triggers, blinking Great Oak Guardian.
When Great Oak Guardian enters, it triggers, untapping all creatures you control and giving them +2/+2 until end of turn.
Activate Urza's Bauble by tapping and sacrificing it.
Repeat.
This clever engine uses Displacer Kitten as the ultimate catalyst, turning every noncreature spell you cast into a perpetual motion machine that blinks your permanents. Emry, Lurker of the Loch acts as your graveyard's anchor, letting you continuously cast artifact cards like Urza's Bauble directly from the scrap heap for zero mana. Each time you replay that Bauble, the Kitten's avoidance ability triggers to rescue Great Oak Guardian from exile, whose entrance routine dutifully untaps both Emry and your mana sources so you can pay for any additional costs and keep the loop running indefinitely.