With its elongated body, menacing fangs, and vibrant colors, Yanmega embodies the swift and predatory nature of its dragonfly inspiration
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
You need to build around an instant-speed game plan since you only get the mana in your end step, but it takes little effort
If a creature with annihinfect is attacking a planeswalker, and the defending player chooses to sacrifice that planeswalker, the attacking creature continues to attack
It offers an incredible mana advantage and demands to be surrounded by a horde of creatures, but it asks little else