Scuttling Sliver, Trazyn the Infinite, Oko, Lorwyn Liege // Oko, Shadowmoor Scion, and Arc Reactor

Prerequisites

• Scuttling Sliver on the battlefield
• Trazyn the Infinite on the battlefield
• Oko, Lorwyn Liege // Oko, Shadowmoor Scion on the battlefield
• Arc Reactor in the graveyard

Steps

1. Activate Oko's first loyalty ability by putting two loyalty counters on it, causing Trazyn to gain all creature types until end of turn
2. Activate Trazyn using Arc Reactor's ability by tapping it, adding Activate Trazyn by paying , untapping it
3. Repeat from step 2

Results

• Infinite colorless mana
• Infinite untap of some creatures you control