Obviously, this card does so much more, so theres not much risk involved here
Since the card is currently only being played in just one modern deck, I personally had it in the third spot behind the best blue reactive spells in the format, Counterspell and Force of Negation, but I can see the number one spot going to the best and most efficient threat the color has to offer
Lightfoot Rogue, for example, gains Deathtouch on a roll of one to nine, but will gain an additional +1/+0 on a 10-19, and will get a bonus +3/+0 alongside First Strike on a natural 20
A rare FCA card is rarer than a normal set mythic, so losing to mythic ones will be like a 1 in a 100 draft experience
At the end of each players turn, a simple question decides whether the time of day flips over