Any "at the beginning of the next end step" triggered abilities won't get the chance to trigger that turn because the end step is skipped
Flavor Text P/T Set Number 257 Language Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (5/1/2008) This ability affects every card in every game zone, all tokens on the battlefield, and all spell copies on the stack, regardless of who controls or owns them
It's unplayable in a deck with 2 or fewer caves, mediocre with 3, and probably only solid with five or more 4 mana is kind of a lot for something that just gives a couple of keywords to a creature, and it only gives it to them when the creature attacks alone
Yeah, new Vraska looks like she could be pretty fun
A lot of the new mythic rare cards and rare cards have abilities that could well be game-ending in a short amount of time