Together Forever + Ashnod's Altar + Walking Ballista + Semblance Anvil

Together Forever

Ashnod's Altar

Walking Ballista

Semblance Anvil

How it works

1. Cast Walking Ballista by paying 0 due to Semblance Anvil, causing it to enter the battlefield with a +1/+1 counter on it.
2. Activate Together Forever by paying 1, targeting Walking Ballista.
3. Activate Ashnod's Altar by sacrificing Walking Ballista, adding CC.
4. When Walking Ballista dies, Together Forever triggers, returning Walking Ballista from your graveyard to your hand.
5. Repeat.

This clever loop turns the mechanical synergy of cost reduction and sacrifice into a perpetual motion machine, fueled by a single mana from Ashnod's Altar. With Semblance Anvil already having exiled a creature card to make artifact creature spells cost {2} less, Walking Ballista can be cast for free with its initial +1/+1 counter intact. By utilizing Together Forever's activated ability, you ensure that sacrificing Walking Ballista to Ashnod's Altar doesn't send it to the permanent grave; instead, the delayed trigger rescues it straight back to your hand so you can recast it for zero mana while netting endless colorless mana, triggers, and devastating damage.