Any creature you control that couldn't be targeted by the original spell (due to shroud, protection abilities, targeting restrictions, or any other reason) is just ignored by Zada's ability
1 Card storage box 6 Card Dividers 8 Booster packs of 12 additional game cards each 6 Damage-counter dice 1 Lore counter Starter Decks The two starter decks in Azurite Sea are Amber/Ruby with Jim Hawkins Honorable Pirate and Tigger In the Crows Nest
The reason is simple: board wipes are one of the best ways to catch up when you're behind on board
In the Magic: The Gathering TCG, planeswalkers have their own card type, though - apart from Battles, which have only shown up in the one set - they're the rarest type of card, and many decks won't even contain one
As for the latter, it digs you into your deck for a free creature each turn, so hand size isnt an issue