Earlier in the format, while mana is clunkier, its going to be stronger to punish less refined decks that are more interested in playing powerful cards than they are in having a cohesive gameplan, and Spell Pierce is better at serving that purpose than Dive Down is
A creature's persist ability can bring it back again if its -1/-1 counters are removed this way
(However, if it's still in the graveyard at that time, it will count itself, as it is very much a hot card.) If another effect modifies how much damage your hot source would deal, including preventing some of it, the player being dealt damage or the controller of the permanent being dealt damage chooses an order in which to apply those effects
I think a three or four deck shoe would work
Ten of the cards are holo: Gengar, Mewtwo, Mismagius, Dusknoir, Darkrai, Chandelure, Trevenant, Gorgeist, Mimikyu, and Hatterene
Jodah, Archmage Eternal Number one coming in at $.49