Dice rolling has been considered for sets in the past, however it has only been a real thing in the Un-parody sets, like Unstable and Unsanctioned, which are often used as test-beds for mechanics before they're introduced to the main game itself
If the permanent that active player controls phase out at the end of the turn, it will phase in after the whole turn, at the next untap step of this player
Whenever Kefka (clown side) attacks, each player must discard a card, and you can then draw a card for each card type discarded
Additionally, the fact you gain a lore for playing it is pretty broken
The video was initially posted on Instagram and then reposted by another user on Twitter
This one turns into a terrible Geist of Saint Traft / Batterskull combo sometimes, which is pretty neat