This feels like another opportunity to swap some card slots around to accommodate their rarity. To me this looks like a bog-standard card which makes a lot of sense at common. In contrast to that, Mischievous Brownie feels way too complicated for a common.

Btw, Ingenious Prodigy in standard suggest that skulk might have become deciduous, so it might be appropriate to use the keyword straight-up rather than spell it out.

If you choose to use flash as a keyword, note that the general convention is to separate flash from other keywords as their relevance is generally different - flash only matters when the card is in your hand/stack where as the usual creature keywords are relevant while the the card is in play - see for example Faerie Duelist, Spectral Sailor, Errant, Street Artist, etc. This btw applies to Ancient Chewer and Unlikely Recruit.

Removed the skulk ability and changed it to be more "bait" related. (Also changed some rarities and seperated the flash keyword on the other cards.)