Valefor is integral to Yuna's abilities as a young Summoner and is the first Summon Yuna has access to, so of course we needed to see them together
Dollar rares are often only used to even out a trade
Give it 1 Energy, and even on the occasions where all three coin flips give tails, you are still giving the turns Energy to your Benched cards
"Master the elements and join your favorite characters for new adventures, iconic art, an elemental showdown like never before." Rin Velasco is a trending reporter
Now you do need to have a location in your hand for his effect to do anything, but with some smart mulliganing and/or a good amount of draw, that should be consistently achievable on curve
In particular, Innistrad introduced double-faced transforming cards to reflect its horror inspiration