Jegantha, the Wellspring + Horde of Notions + Concordant Crossroads + Bartolomé del Presidio

Jegantha, the Wellspring

Horde of Notions

Concordant Crossroads

Bartolomé del Presidio

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Bartolomé del Presidio by sacrificing Jegantha.
3. Activate Horde of Notions by paying , causing you to cast Jegantha from your graveyard without paying its mana cost.
4. Repeat.

This elegant loop turns Jegantha, the Wellspring into a self-recycling engine, tapping to yield the exact five-color mana requirement demanded by Horde of Notions. Because Jegantha's mana cannot pay generic costs, Horde of Notions's ability is the perfect outlet to bring the Avatar right back from the graveyard for free, while Concordant Crossroads ensures Jegantha immediately loses any summoning sickness to tap again. Along the way, Bartolomé del Presidio acts as the essential sacrifice outlet, growing with endless +1/+1 counters each iteration while churning out an infinite cascade of death and sacrifice triggers.