You usually get wildcards from opening Arena boosters packs, and that's what's cool about these preconstructed decks: you can buy them directly with gems, which you can acquire with cash in the Arena shop
If that wasnt enough to easily make Fairy Godmother, Mystic Armorer one of the best amethyst cards in Rise of the Floodborn, the effect also allows any characters banished in a challenge on your turn to return to your hand rather than the discard pile
Green mana's removal effects usually target enchantment cards and artifacts, and green's creature removal relies on having its own creatures
Ever since Mirror Universe gave us this ability, we've had others get printed since
Each Set Booster contains fifteen cards, with plenty of opportunities for opening multiple rares and mythic rares, including multiple legends: 1 Foil-etched legendary creature or Background (rare or mythic rare in 1 of 3 boosters) 1 Legendary creature or planeswalker (rare or mythic rare in 50% of boosters) 1 Legendary Background (rare in 1 of 12 boosters) 1 Rare or mythic rare (this can be legendary or non-legendary) 1 Traditional foil card of any rarity, including Booster Fun cards 1 Common or uncommon card with the rulebook treatment 1 Basic land or foil basic land 3 Common cards that are connected thematically 3 Uncommon cards that are connected thematically 2 Wildcards of any rarity 1 Art card or foil-stamped art card 1 Token, ad card, helper card, or a card from The List Set Boosters are available individually and in displays of 18 boosters