It's not optimal, but it's good to know
Just being instant pretty much removes all diminishing returns from a discard card and so clique is a real winner with its ever so useful body
This can become pretty devastating for players facing a Faerie-focused deck
Reckless Stormseeker / Storm-Charged Slasher When it comes to aggressive 3-drops, Reckless Stormseeker is pretty great
The creator gets hot buzz-worthy content, WotC gets an engaged audience, and you the viewer can see real cards and real Arena gameplay before a set is released
However, they require multiple Energy types to use their attacks, which make them highly inconsistent when Energy generation is randomized and thus require the entire deck to revolve around them or to have some other utility that does not involve attacking, such as "Druddigon" ( Mythical Island )