Diminishing Returns Its been many years since people ran Diminishing Returns in any real tournament format, but you didnt think I was going to leave Forgetful Fish off the list, did you
On average random is probably the most effective but it is obviously more
If you have eight mana available, you get to remove an opposing blocker and crack back for 4, or have a blocker of your own at the ready
It has a casting time of 2
Lightning Bolt, on the contrary, isnt legal in Standard or Pioneer, so its Thrum of the Vestige version from FCA is also unplayable in those formats
Hour of Promise also creates blockers, threats to pressure Planeswalkers, and pumps you all the way up with four permanents to trigger the citys blessing alongside Arch of Orazca