Quicksilver Elemental, Touch of Vitae, and Ilysian Caryatid

Prerequisites

• Quicksilver Elemental on the battlefield
• Touch of Vitae in hand
• Ilysian Caryatid on the battlefield
• available

Steps

1. Cast Touch of Vitae by paying , targeting Ilysian Caryatid
2. Activate Quicksilver Elemental by paying , causing it to gain Ilysian Caryatid's activated abilities until end of turn
3. Activate Quicksilver Elemental using Ilysian Caryatid's ability by tapping it, adding
4. Activate Quicksilver Elemental using Ilysian Caryatid's ability granted to it by Touch of Vitae by paying , untapping Quicksilver Elemental
5. Repeat from step 2

Results

• Infinite colored mana