Displacer Kitten | Throne of Eldraine | Mind Games

Cards

({2} magic symbol) ({U} magic symbol) ({U} magic symbol) if
Throne of Eldraine's chosen color is not "Blue" available.

If able, activate
Throne of Eldraine's first ability by tapping it, adding ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) that can only be spent to cast blue monocolored spells.
Cast
Mind Games with buyback by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) , targeting
Displacer Kitten.
Displacer Kitten triggers, blinking
Throne of Eldraine. Choose "Blue" as it enters the battlefield.
Resolve
Mind Games, returning it to your hand.
Repeat.