Five mana is a lot but we can copy protective instants and countermagic on their turn to keep Alania around
Knight of the White Orchid has helped significantly with not falling behind against Gideon, Ally of Zendikar, but it is difficult to win when they follow it up with Wingmate Roc
Once Splitskin Doll's ability begins to resolve, players can't take actions in between the time you draw a card and the time you would discard a card
Youll also notice above that the Base Set pack had an ST of 6, Neo Discovery and Neo Revelation have an ST of 0 and Neo Destiny has an ST of 1
While many shiny rare cards are getting a lot of attention online and selling for quite a bit, dont expect it to last
The casualty ability is nice, but ultimately cards like this are too expensive for how little they accomplish when not used as a combo piece