Errant, Street Artist + Reality Spasm + Repeated Reverberation

Errant, Street Artist

Reality Spasm

Repeated Reverberation

How it works

1. Cast Repeated Reverberation by paying 2, copying the next instant or sorcery spell you cast twice.
2. Cast Reality Spasm by paying at least 3, targeting at least three permanents and choosing the untap mode.
3. Repeated Reverberation triggers, copying Reality Spasm twice, targeting at least three permanents.
4. Holding priority, activate at least two mana-producing permanents you control by tapping them, adding at least 1.
5. Activate Errant by paying 1 and tapping it, copying the Reality Spasm copy, targeting Errant and at least two mana-producing permanents you control.
6. Resolve the copy of Reality Spasm from step 3, untapping Errant and at least two mana-producing permanents you control.
7. Repeat from step 4.

This dazzling loop turns the setup of Repeated Reverberation into an unstoppable engine by leveraging the copying power you just earned. When you cast Reality Spasm, the resulting extra copies let you untap your mana sources while Errant, Street Artist steps in to replicate the effect indefinitely. By feeding Errant's activation with the mana produced by your newly untapping permanents, you sustain the loop endlessly and generate infinite mana alongside limitless magecraft triggers.