Namor the Sub-Mariner + Phyrexian Altar + Mystic Speculation + Mizzix of the Izmagnus

Namor the Sub-Mariner

Phyrexian Altar

Mystic Speculation

Mizzix of the Izmagnus

How it works

1. Cast Mystic Speculation by paying due to Mizzix of the Izmagnus.
2. Namor triggers, creating a 1/1 Merfolk creature token.
3. Resolve Mystic Speculation.
4. Activate Phyrexian Altar by sacrificing the Merfolk, adding .
5. Repeat.

This spell-slinging engine relies on Mizzix of the Izmagnus to aggressively reduce your spell costs through accumulated experience counters, eventually making Mystic Speculation cost just a single blue mana to cast. As you cast the Mystic Speculation, Namor the Sub-Mariner triggers to generate a 1/1 blue Merfolk creature token, expanding your board presence and boosting Namor's own power along the way. You can then feed that fresh token directly into Phyrexian Altar to generate the exact blue mana needed to recast the spell. By looping this sequence continuously, you gain infinite sacrifices, storm count, and scrying power to dig through your entire deck.