A horrible deal that even an idiot could understand is not worth the risk. It's also a well known card from Hearthstone that gives the opponent the ability to play all the spells in their hand for free.
Dude, don't fuck with that hoe, she a millhouse manastorm, not worth it.
Any period of time where you and your friends go out without initial purpose or expectations. Usually in the early hours of the morning or late at night, side quests last as long as everyone is still out away from their home, dorm, or common meeting space. Side quests usually happen after a "main quest," scheduled hang out or party and usually feature less people than the original main quest.
"I'm bored but idk what to do... wanna just go out?"
"Hell yeah man let's go on a sidequest!"