Its a great tool for a rogue deck because rogues have plenty of ways to avoid being blocked
If there is one, she can lock down a character with her Crystallize ability, forcing your opponent to exert them so you can have Elsa take them out
Mind Flayarrrs meanwhile, has heaps of horrors (including that Crab Ooze Horror which Gavin Verhey teased), and is centred on manipulating your opponents' graveyards, milling them and then stealing their creatures
If that card's effect is negated, Spell Counters cannot be placed on it and any Spell Counters already on it are removed
Espeons psychic-themed illustration commands strong appeal in Japan
Treacherous Greed You need to be interested in attacking and sacrificing creatures for Treacherous Greed to be worthwhile, but Ill jump through a troubling number of hoops to draw three cards with this Orzhov instant