Horseshoe Crab + Cryptolith Rite + Mana Reflection

Horseshoe Crab

Cryptolith Rite

Mana Reflection

How it works

1. Activate Horseshoe Crab by tapping it, adding .
2. Activate Horseshoe Crab by paying , untapping it.
3. Repeat.

This elegant loop transforms a humble aquatic creature into a limitless reservoir of mana by turning every tap into a profitable venture. Thanks to Cryptolith Rite, Horseshoe Crab gains the ability to tap for mana, while Mana Reflection doubles that output to yield two mana for every one you spend. You simply use one of that newly generated blue mana to pay Horseshoe Crab's untap cost, pocketing the excess mana with each repetition to fuel whatever grand designs you hold in your hand.