The return of Mega Evolutions -- With Pokemon Legends Z-A and the Mega Evolution TCG series, a fan-favourite mechanic is making its grand comeback
P(0 prized|1 in hand) is dhyper(0,1,52,6) and P(1 prized|1 in hand) is dhyper(1,1,52,6)
Appearing as Lagiacrus from Monster Hunter 3, Nezahal threatens to draw an absurd amount of cards when left unanswered
I love the silliness of this because you can exchange a Llanowar Elves textbox with an Ulamogs, or even better, with someones commander ability
Wedding Announcement / Wedding Festivity Wedding Announcement from Innistrad: Crimson Vow gives you some combination of three human creature tokens and/or three card draws when certain conditions are met before its transformation
Burst Roar offers players a chance to refresh their hand by discarding all their cards and drawing six new cards