Mairsil, the Pretender, Quicksilver Elemental, Nyx Lotus, and Horseshoe Crab

Prerequisites

• Mairsil, the Pretender on the battlefield
• Quicksilver Elemental in exile
• Nyx Lotus in exile
• Horseshoe Crab in exile

Steps

1. Activate Mairsil using Nyx Lotus' ability by tapping it, adding at least
2. Activate Mairsil using Horseshoe Crab's ability by paying , untapping it
3. Activate Mairsil using Quicksilver Elemental's ability by paying , causing it to gain all activated abilities of itself until end of turn
4. Repeat

Results

• Infinite mana of colors you have devotion to