Orvar, the All-Form + Throne of Eldraine + Mirror Box + Mind Games

Orvar, the All-Form

Throne of Eldraine

Mirror Box

Mind Games

How it works

1. If able, activate Throne of Eldraine's first ability by tapping it, adding that can only be spent to cast blue monocolored spells.
2. Cast Mind Games with buyback by paying 2, targeting Throne of Eldraine.
3. Orvar's first ability triggers, creating a copy of Throne of Eldraine. Choose "Blue" as its color as it enters the battlefield.
4. Resolve Mind Games, returning it to your hand.
5. Repeat.