Skywarden no.161803 (Yellow)

Skywarden no.161803’s Galvanize ability triggers when it becomes a defending card on the combat chain. This is an optional effect: You choose whether or not to destroy an item you control at the time the triggered effect resolves. If an item you control is destroyed, this gets +1. If the item you destroyed this way was a Golden Cog, you will create a Gold token.

When resolving Skywarden no.161803’s triggered effect, there is no priority between any of the effects generated (e.g. choosing to destroy an item you control, getting +1, creating a Gold token).

You cannot do the optional effect if you are unable to destroy an item you control.