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
The ability very much matches the stat of the Bobblehead, as it doles out +1/+1 counters on a target creature equal to the number of Bobbleheads you control
PSA grading boosts its value among collectors, with graded copies fetching significantly higher prices
However, your opponents can still win the game if an effect says so, such as with the ability of Wowzer, the Aspirational
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
Also watch for your artifact sweepers, because they can clear the way for your commander to attack