Quickbeam, Upstart Ent + Devoted Druid + Spawnsire of Ulamog + Maskwood Nexus

Prerequisites

• Devoted Druid does not have summoning sickness.

Steps

1. 1Activate Spawnsire of Ulamog's first ability by paying , creating two 0/1 Eldrazi Spawn creature tokens.
2. 2When the Eldrazi Spawns enter the battlefield as Treefolk due to Maskwood Nexus, Quickbeam triggers twice, giving Devoted Druid and up to one other creature +4/+4 until end of turn.
3. 3Activate Devoted Druid's first ability by tapping it, adding .
4. 4Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
5. 5Repeat from step 3 three additional times.
6. 6Repeat from step 1.

Effects

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers
• Infinite green mana
• Infinitely large creatures you control until end of turn