She's really not as scary as she sounds but people cannot separate in their minds what a card actually does and what a card is capable of doing I have now stripped my Ivy deck and salvaged some of it into Riku
Your opponents Active Pokmon is now Burned
That first ability resembles the shenanigans you can get up to with Dargo, the Shipwrecker, so in the right deck, you can cast it for two mana, attack for seven (that can only be blocked by legendary creatures), and then sacrifice it to destroy an annoying artifact or creature
Its an impressive power boost but, at only five mana, youd best believe theres a drawback
Or you could use cards like Merfolk Looter and pitch big, splashy spells into the graveyard you can flash back for cheap, like Ezuris Predation, Clone Legion, or Insurrection
All you have to do is tap Gaeas Cradle to add one green mana for each creature you control, which is absurdly powerful at even just a few creatures