Falco Spara, Pactweaver + Sensei's Divining Top + Vodalian Wave-Knight + Semblance Anvil

Falco Spara, Pactweaver

Sensei's Divining Top

Vodalian Wave-Knight

Semblance Anvil

How it works

1. Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
2. Vodalian Wave-Knight triggers, putting a +1/+1 counter on each other Knight and/or Merfolk you control.
3. Cast Sensei's Divining Top from the top of your library by paying 0 and removing a counter from a creature you control.
4. Repeat.

This delightful loop hinges on Falco Spara, Pactweaver allowing you to cast spells directly from the top of your library by trading away a counter from a creature you control, completely bypassing normal mana costs. Sensei's Divining Top naturally feeds this by drawing you a card and replacing itself on top of your library, while Semblance Anvil crucially reduces its casting cost to zero so you never run out of mana to recast it. Meanwhile, Vodalian Wave-Knight watches every card draw happen and rewards your engine by continuously piling +1/+1 counters onto your eligible creatures, helping to replenish the very fuel Falco Spara, Pactweaver demands to keep the top-deck casting going.