Aluren

A creature-based combo deck built around the namesake enchantment. With Aluren in play, all creatures with mana value 3 or less can be cast at any time for free — including your opponent’s, which is why the combo has to win immediately.

Aluren costs 2GG and lets any player cast creature spells with mana value 3 or less without paying their mana cost and as though they had flash. The combo starts the moment it resolves.

Raven Familiar enters the battlefield, triggering its ability to look at the top three cards of your library, put one in your hand, and put the rest on the bottom. Then Cavern Harpy enters for free (it costs UB, under Aluren’s threshold), and its enters-the-battlefield ability returns another creature to your hand — bounce Raven Familiar. Replay Familiar for free, dig three more cards. Replay Harpy, bounce Familiar again. Repeat infinitely.

This loop finds your entire deck. Once you’ve drawn everything, you use Spike Feeder in the loop: cast Spike Feeder (free), remove a +1/+1 counter to gain 2 life, bounce it with Cavern Harpy, replay it with fresh counters. Infinite life, and then you can set up a lethal attack or mill.

Birds of Paradise and Wall of Roots ramp toward the four-mana Aluren. Wall of Blossoms draws a card and blocks early aggro. These creatures also serve as Cavern Harpy bounce targets before the combo is assembled.

Cabal Therapy strips the opponent’s hand — name their counterspell or removal before you go off. Flash it back by sacrificing a Bird or Wall.

Man-o’-War bounces opposing creatures for free under Aluren — it can clear their board entirely in the combo turn.

Living Wish tutors creature silver bullets from the sideboard — a Spike Feeder if you’re missing the combo piece, or a utility creature for specific matchups.

Yavimaya Coast and City of Brass support the three-color mana base. The deck needs UBG reliably by turn four.

Aluren is fragile but spectacular. It wins at instant speed through a creature-based loop that’s hard to interact with once it starts. The weakness: if they counter or remove Aluren, you’re a bad midrange deck.