The card includes 11 different Oracle rulings to go along with the words that are actually on the card, covering myriad potential questions about exile, cage counters, and what happens if multiple cards with the same ability are exiled with the aforementioned cage counters (Mairsil will have multiple instances of that ability
Forgotten Ancient and Taurean Mauler come to mind
The game instantly captured the hearts of TCG fans, Disney lovers, and movie buffs
Its a strictly better Counterspell by orders of magnitude
Much like Green Goblin, the side that gets the most traction here is Venom, Lethal Protector, which can snowball as a draw engine and cheat permanents into play by sacrificing creatures
Is it the best rate in a vacuum