Many black-based decks can create a hefty amount of Treasure tokens, and just creating and sacrificing two Treasures deals 4 damage to everybody else
Water Law" deck is particularly effective at dealing with opponents who try to play aggressively, as it can quickly remove their characters and take control of the board
Both of these are useful and powerful
WotC has clearly worked hard to tune a three-mana planeswalker we can describe as playable rather than forgettable or format warping. Kaitos phasing trigger basically guarantees two activations, even in decks that hate to block, and the combination of card draw and ninjutsu-enabling will always come in handy
How about copying BloodthirsterBloodthirster, or Dragonhawk, Fate's TempestDragonhawk, Fate's Tempest
instead, they shoved them in their pockets to take to playgrounds and school, showing them off to their friends