Enter the Infinite is definitely the big, bad Blue spell we're looking for here
Why are some One Piece cards so expensive
I always thought the front were exactly the same, but apparently the copyright information differs (the Japanese ones mention 2010 Pokmon/Nintendo/Creatures/GAME FREAK whereas the English ones mention just 2010 Pokmon/Nintendo)
This 1-mana instant simply states, your opponents cant cast spells this turn. Spells put on the stack before Silence resolves will still resolve, but from that moment on, theyll be unable to cast anything
Luckily, the alternate art is not that much more than the regular art, so if youre looking to flex in front of your local scene, you should shell out the money before the price goes up, and your green deck gets left in the dust
She should definitely see play in decks looking to take advantage of these mechanics