Sliver Queen + Quickbeam, Upstart Ent + Devoted Druid + Conspiracy

Sliver Queen

Quickbeam, Upstart Ent

Devoted Druid

Conspiracy

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 it.
3. Activate Devoted Druid's first ability by tapping it, adding .
4. Activate Sliver Queen by paying 1, creating a 1/1 Sliver creature token.
5. When the Sliver enters the battlefield as a Treefolk due to Conspiracy, Quickbeam triggers, giving Devoted Druid and up to one other creature +2/+2 until end of turn.
6. Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
7. Repeat.

This clever loop relies on Conspiracy to rewrite the very nature of your creatures, naming "Treefolk" so that every token you create masquerades as one. That type-shifting is what makes Quickbeam, Upstart Ent pay attention, triggering its stat-boosting ability whenever a new body arrives and ensuring your forces grow terrifyingly large. Meanwhile, Devoted Druid provides the mana engine, constantly untapping itself by absorbing -1/-1 counters to fuel Sliver Queen's token-making ability. Together, this bizarre union of disparate types and mechanics spins an endless cycle of creation, pumping out infinite creatures and infinite power.