Magda, Brazen Outlaw, Seeker of Skybreak, and Oko, Lorwyn Liege // Oko, Shadowmoor Scion

Prerequisites

• Magda, Brazen Outlaw on the battlefield
• Seeker of Skybreak on the battlefield
• Oko, Lorwyn Liege // Oko, Shadowmoor Scion on the battlefield

Steps

1. Activate Oko's first loyalty ability by putting two loyalty counters on it, causing Seeker of Skybreak to gain all creature types
2. Activate Seeker of Skybreak by tapping it, targeting itself
3. Magda triggers, creating a Treasure token
4. Resolve the Seeker of Skybreak ability, untapping it
5. Repeat from step 2

Results

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite artifact tokens
• Infinite Treasure tokens
• Infinite colored mana
• Put all artifact cards and a subset of creature cards from your library onto the battleifeld