If you don't even want to waste a turn killing the sun against Walking Wake, there's a quack for that.

Golduck @ Clear Amulet
Ability: Cloud Nine
EVs: SpA/SpD
- Nasty Plot
- Grass Knot
- Light Screen
- Helping Hand
Thanks to Cloud Nine, Sunny Day will play an animation but not succeed in doing anything, and there will be no ability popup for Protosynthesis. The boss is heavy enough that Grass Knot hits for max power, and you can boost up knowing that they can't be removed except by the one-time poz-wipe that comes deep into the health bar. You can easily solo the raid with this if you want, but Light Screen/Helping Hand allow you to shift effortlessly into a support role if you see Iron Hands or something that can hit harder than a +6 Grass Knot. Golduck is certainly bulkier than Iron Bundle, and will take even longer to wear down before you have to be concerned about healing.

Golduck @ Clear Amulet
Ability: Cloud Nine
EVs: SpA/SpD
- Nasty Plot
- Grass Knot
- Light Screen
- Helping Hand
Thanks to Cloud Nine, Sunny Day will play an animation but not succeed in doing anything, and there will be no ability popup for Protosynthesis. The boss is heavy enough that Grass Knot hits for max power, and you can boost up knowing that they can't be removed except by the one-time poz-wipe that comes deep into the health bar. You can easily solo the raid with this if you want, but Light Screen/Helping Hand allow you to shift effortlessly into a support role if you see Iron Hands or something that can hit harder than a +6 Grass Knot. Golduck is certainly bulkier than Iron Bundle, and will take even longer to wear down before you have to be concerned about healing.