Displacer Kitten + Throne of Eldraine + Change of Heart

Displacer Kitten

Throne of Eldraine

Change of Heart

How it works

1. If able, activate Throne of Eldraine's first ability by tapping it, adding that can only be spent to cast white monocolored spells.
2. Cast Change of Heart with buyback by paying 3, targeting Displacer Kitten.
3. Displacer Kitten triggers, blinking Throne of Eldraine. Choose "White" as it enters the battlefield.
4. Resolve Change of Heart, returning it to your hand.
5. Repeat.