Errant, Street Artist + Reality Spasm + Teach by Example

Errant, Street Artist

Reality Spasm

Teach by Example

How it works

1. Cast Teach by Example by paying U/RU/R, copying the next instant or sorcery spell you cast.
2. Cast Reality Spasm by paying at least 3, targeting at least three permanents and choosing the untap mode.
3. Teach by Example triggers, copying Reality Spasm, 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 clever loop hinges on Reality Spasm's flexible untap mode to endlessly refresh your board while generating an excess of mana. You kick things off with Teach by Example to ensure your initial sorcery duplicates itself upon casting, setting the stage for Errant, Street Artist to take over the engine room. Because Errant can copy spells that weren't cast—such as those created by storm or copy effects—her activated ability can repeatedly target and duplicate the Reality Spasm copies you generate, allowing you to continually untap your mana sources and Errant herself for infinite value.