Considering the relative size of a pokeball and a Wailord, a Wailord is a bomb. Just take your pokeball inside any building you don’t want to exist anymore, and release the Wailord.
In lore pokemon can supposedly scale their size which is part of how the ball works (forcing them to miniaturize), but I don’t recall any show ever showing unlimited resizing
Considering the relative size of a pokeball and a Wailord, a Wailord is a bomb. Just take your pokeball inside any building you don’t want to exist anymore, and release the Wailord.
In lore pokemon can supposedly scale their size which is part of how the ball works (forcing them to miniaturize), but I don’t recall any show ever showing unlimited resizing