You may cast that card without paying its mana cost if the spell's mana value is less than or equal to the amount of life you gained this turn
She has no plus ability, so at first you might think she has no way to hit her ultimate
If you hit six or more, you can immediately station ittransforming it into a flying 7/15 with: Whenever this creature attacks, draw a card for each multicolored permanent you control. The trick is to stock your deck with as many multicolored creatures, enchantments, artifacts, and even lands as you can manage
It is somewhat of a safe Final Fortune in the deck but it is pretty rarely a Time Walk
Still, with Final Fantasy on the horizon and new cards being released all the time, there is absolutely an opportunity for this to rocket into relevancy overnight
She costs one generic, one green, one white, and one blue mana to cast