Does Salvage require a gear to be targeted in order to play it and draw a card?

Ruling: Originally, Salvage required a valid gear target to be played because the "may" choice happened at resolution, not when playing the spell. The card has since received errata changing the text to "You may kill up to one gear. Draw 1." which allows it to be played without a gear target.

Sequence:

• Original templating: "May" choices at resolution required a valid target to put the spell on the chain first
• All targeting choices are made when playing a spell (as part of putting it on the chain)
• The "may" choice only occurred at resolution, so a gear had to exist to target
• New templating: "up to one" means 0 is a valid choice, so no gear target is required

Nuances:

• The distinction between "may" choices (made at resolution) and targeting choices (made when playing) determines whether a valid target is required
• "Up to one" templating allows zero targets as a valid choice, unlike "may" templating on the target itself