I would prefer her to have more lore, so she'd be an upgrade over Minnie Mouse - Stylish Surfer
I won't list them all but some examples: "Hard" counters : Mana Drain, Cancel, Rewind, Last Word, Cryptic Command, "Soft" counters (counter unless): Rune Snag, Mana Leak, Mana Tithe Counter abilities: Stifle, Voidslime, Disallow, Tale's End Restricted targets: Nix, Remove Soul, Negate, Red Elemental Blast Other ways to remove from the stack: Summary Dismissal, Mindbreak Trap, Spell Queller, Venser, Shaper Savant
One other use for this is in a mill deck, since you can force your opponent to draw the 5 cards instead
or even One Piece, Digimon, Star Wars: Unlimited or anything else in between thinning your opponents deck is rarely helpful to you