Quickbeam, Upstart Ent + Devoted Druid + Thopter Squadron + Maskwood Nexus

Prerequisites

• Devoted Druid does not have summoning sickness.
• Thopter Squadron has at least two +1/+1 counters on it.

Steps

1. 1Activate Devoted Druid's first ability by tapping it, adding .
2. 2Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
3. 3Activate Devoted Druid's first ability by tapping it, adding .
4. 4Activate Thopter Squadron's first ability by paying and removing a +1/+1 counter from it, creating a 1/1 Thopter artifact creature token.
5. 5When the Thopter enters the battlefield as a Treefolk due to Maskwood Nexus, Quickbeam triggers, giving Devoted Druid and up to one other creature +2/+2 until end of turn.
6. 6Activate Thopter Squadron's second ability by paying and sacrificing the Thopter, putting a +1/+1 counter on Thopter Squadron.
7. 7Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
8. 8Repeat.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite power and toughness for most creatures you control until end of turn