She offers repeatable grave recursion, since most of the bears have no abilities and on top of that she buffs creatures with no abilities and grants them unblockable
This is a significant downside, hence the lower ranking, but it still tutors for the most effective creatures youd want to reanimate, like one of the best ETB effects on black cards: Archon of Cruelty
Considering that players could get their hands on borderless copies of Six for $10 at the beginning of April, this isnt a particularly huge gap
Lugia and Ho-Oh especially would look phenomenal as EX immersive cards, with potentially Lugia under the sea creating raging torrents and Ho-Oh flying through a sunset, just like in the very first anime episode
As always, some decks are better than otherssome are meme tier and some are merely playable, fun decks without much competitive promise