A player loses the game after having been dealt 21 damage from one of them, not from both of them combined
While at first glance this looks like your average four mana clone, pretty interchangeable with any number of blue cards for EDH players who want this effect, it's actually a fair bit better than most
The Final Fantasy Bundle, containing nine Play Boosters, two traditional foil extended arts, 16 foil full-art basic lands, a spindown life counter, two reference cards, and a storage box is also available for preorder, as is the Starter Kit, which contains two precon decks for Standard play
Some earlier promo cards have unique event symbols, though that is meant to only be for very special events going forwards
Similarly, Amano's iconic art for Final Fantasy 4's Cecil Harvey has been repurposed for one of Magic's strongest partner commanders, Tymna the Weaver, which has only ever been reprinted once before this