Devoted Druid + Swift Reconfiguration

Devoted Druid

Swift Reconfiguration

How it works

1. Activate Devoted Druid's first ability by tapping it, adding .
2. Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping itself.
3. Repeat.

This clever pairing relies on a profound rules interaction between Devoted Druid and Swift Reconfiguration to generate infinite green mana. Normally, Devoted Druid would destroy itself after accumulating enough -1/-1 counters to match its toughness, but enchanting it with Swift Reconfiguration turns it into a noncreature Vehicle that loses all other card types. Because it is no longer a creature while keeping its abilities, it completely bypasses state-based actions for having zero toughness, allowing you to endlessly tap for green mana and untap by placing -1/-1 counters with impunity.