If a unit with a mutual damage effect (like Snapvine) has either itself or its target bounced to hand, does the effect still resolve?

Ruling: The ability will still resolve even if either the source or target is bounced to hand. The effect remains on the chain and attempts to resolve, though it will not deal damage to the missing target.

Nuances:

• This applies whether the unit with the ability or its target is returned to hand
• The ability technically resolves rather than fizzles, but has no effect on the missing target
• This interaction allows cards like Clockwork Keeper to still draw even if bounced in response to its ability