Isochron Scepter, To Arms!, and Kelpie Guide

Prerequisites

• Isochron Scepter on the battlefield
• To Arms! in exile
• Kelpie Guide on the battlefield
• Creatures you control can tap to produce at least
• Kelpie Guide does not have summoning sickness

Steps

1. Activate any number of creatures by tapping it, adding at least
2. Activate Isochron Scepter by paying and tapping it, casting a copy of To Arms! without paying its mana cost
3. Resolve the copy of To Arms!, untapping all creatures you control and causing you to draw a card
4. Activate Kelpie Guide by tapping it, untapping Isochron Scepter
5. Repeat
6. If creatures you control can tap to produce at least , this combo nets near-infinite mana

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite storm count
• Near-infinite magecraft triggers
• Near-infinite untap of creatures you control
• Near-infinite mana creatures you control can produce