This two-drop Black enchantment arrives with a Clue and a life lost
Putting Rakdos, the Showstopper onto the battlefield allows you to flip a coin for each non-Demon, Devil, or Imp creature, with the caveat that you destroy any that come up tails
However, Sephiroth doesnt actually care whose creatures die
A 5/5 with vigilance and lifelink, he can ETB to swap life totals with an opponent and if you lose life in the process, you draw that many cards
The Best Mythic Soldier Tutoring up your Esper Sentinel is always the right play, and Ranger-Captain of Eos is going to let you do that AND has a sacrifice ability, making it so your opponents can't cast non creature spells
Sure you can build a purple deck that actually has a lot of card drawing abilities but even without purple, competitive or experienced players dont have this issue