Displacer Kitten, Isochron Scepter, Kiora, Behemoth Beckoner, Oath of Teferi, and Sol Ring

Prerequisites

• Displacer Kitten on the battlefield
• Isochron Scepter on the battlefield
• Kiora, Behemoth Beckoner on the battlefield
• Oath of Teferi on the battlefield
• Sol Ring on the battlefield
• You have an instant card exiled with Isochron Scepter that does not remove a permanent and/or counter a spell, and that has legal targets, if needed
• Kiora has at least three loyalty counters on it

Steps

1. Activate Sol Ring by tapping it, adding
2. Activate Kiora's loyalty ability twice by removing two loyalty counters from it, untapping Sol Ring and Isochron Scepter
3. Activate Isochron Scepter by paying and tapping it, casting a copy of the exiled card without paying its mana cost
4. Displacer Kitten triggers, blinking Kiora
5. Resolve the copy of the instant card
6. Repeat

Results

• Infinite copies of all cards exiled by Isochron Scepter
• Infinite magecraft triggers
• Infinite storm count