Realm Resonance (MP24-EN374) - 25th Anniversary Tin: Dueling Mirrors 1st Edition

Activate 1 of these effects;
• Special Summon 1 monster with 1500 ATK/2100 DEF from your GY.
• Shuffle into the Deck, 1 of your "Visas Starfrost" and 4 of your monsters with 1500 ATK/2100 DEF, that are banished, in your GY, and/or face-up on your field, and if you do, Special Summon 1 "Visas" Synchro Monster from your Extra Deck. (This is treated as a Synchro Summon.)
You can only activate 1 "Realm Resonance" per turn.