It does 5 damage to all planeswalkers at your end step each turn
If you can charge up her power, you can generate a ton of mana with this Wizard
But Animar can be answered by targeted removal of the Red (Chaos Warp, burn before the counters arrive), Blue (Pongify effects, Imprisoned in the Moon, stealing, bounce), and Green (Beast Within, Desert Twister, Song of the Dryads, etc)
It revolves around Yurikos ability to flip the top card of your deck, turning its mana value into direct damage to each of your opponents
One way to make this guy work would be to change the creature types of creatures in play with something like Unnatural Selection and then remove them from your graveyard with something like Tormod's Crypt