Well, six mana for two isnt so bad
However, your opponents can still win the game if an effect says so, such as with the ability of Wowzer, the Aspirational
Originally, the card was announced with a print run of 10,000 and was supposed to be available exclusively for attendants of the convention, but due to complaints about the limited availability and to stem price gouging, the print run was increased, and the card was additionally distributed in issue #3 of The Duelist magazine and issue #4 of The Duelist Companion magazine
This can be done by activating Selenia's ability numerous times while the activations are still on the stack, allowing her controller to pay absurd amounts of life, then using the aforementioned spells to topple the life totals of one's opponents
Without further ado, lets hop to it
At the beginning of combat on your turn, if you control two or more other legendary creatures, you may transform Serah Farron