Quintorius Kand + Flicker + Bonus Round + Bloodwater Entity

Quintorius Kand

Flicker

Bonus Round

Bloodwater Entity

How it works

1. Cast Bonus Round by paying 1, causing each player to copy each instant or sorcery spell they cast this turn.
2. Cast Flicker by paying 1, targeting Bloodwater Entity.
3. Bonus Round triggers, copying Flicker targeting Quintorius Kand.
4. Resolve the copy of Flicker, blinking Quintorius Kand.
5. Resolve the original Flicker, blinking Bloodwater Entity.
6. When Bloodwater Entity enters the battlefield, its second ability triggers, putting Flicker on top of your library from your graveyard.
7. Activate Quintorius Kand's second loyalty ability by removing three loyalty counters from it, causing you to exile Flicker from the top of your library and cast it without paying its mana cost, targeting Bloodwater Entity.
8. Quintorius Kand and Bonus Round trigger.
9. Resolve the Quintorius Kand trigger, dealing 2 damage to each opponent and causing you to gain 2 life.
10. Resolve the Bonus Round trigger, copying Flicker targeting Quintorius Kand.
11. Repeat from step 4.

This looping marvel turns a simple blink into an engine of absolute inevitability, supercharged by Bonus Round copying every spell you cast along the way. With Bonus Round active, casting your initial Flicker sets off a chain reaction where Bloodwater Entity constantly recycles Flicker back to the top of your library. From there, Quintorius Kand's −3 ability lets you discover and continuously cast that very same Flicker straight from exile without paying its mana cost. Every single recursion of Flicker triggers Quintorius Kand's passive ability to blast your opponents for 2 damage and pad your life total, ensuring your foes burn away to nothing while you safely combo off.