Additionally, it went infinite with practically everything, a la Devoted Druid
Even if Kaito's triggered ability triggers more than once in the same turn (perhaps because one or more attackers had first strike, multiple players were dealt combat damage by your creatures, or there were multiple combats), and you return an attacking creature to hand each time, you won't be able to activate Kaito's loyalty abilities more than twice that turn
not only did the Fury cost zero mana, but your opponent ended up even on cards
Abstruse Appropriation Id almost expect Abstruse Appropriation to have blue or red in its mana value with the black, but I can see the logic of white
Both of these leave players open for their opponent to attack their life points directly which works against them to win a game
It only works well in decks that discard plenty of cards and have other cards that work well from the graveyard