Quicksilver Elemental, Touch of Vitae, and Transdimensional Bovine

Prerequisites

• Quicksilver Elemental on the battlefield
• Touch of Vitae in hand
• Transdimensional Bovine on the battlefield
• available

Steps

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

Results

• Infinite colored mana