Players cant lose life this turn and players cant lose the game or win the game this turn. In essence, it stops anyone losing that turn, and also every creature on the board
Monastery Mentor Monastery Mentor dominates games with its token ability, plus those tokens have prowess themselves
But declare an attack with JC, and its 10,000 Needles ability balloons it into a massive 10,000-power Freight Train of Death that guarantees it'll deal lethal damage to any creature blocking it or one-shot any opponent if it connects
Can I use it to cast a silver-bordered card
The extra nice part is that while Stellas trigger can go off each turn, the exiled card remains playable until your next turn giving lands and sorceries a much higher rate of usability and allowing you to potentially bank up spells for a flurry on your next turn
You'll note that in all these cases we have simply phenomenal Magic: The Gathering cards