The most powerful ability Arlinn seems to have is with Moons Fury, turning into a 5/5 Werewolf creature with Trample, Indestructible, and Haste
This gives the card an inherent combo-ablity, and lets it play a little defense as well if you are low on life
Blue: Ghostly Flicker, March of Swirling Mist, Slip out the Back, etc
Many of the creatures in this deck are mutants and could benefit from cards like Hancock, Ghoulish Mayor, Jason Bright, Glowing Prophet, and Vault 87: Forced Evolution
[136] A limited set of land cards in the Secret Lair featured paintings from Bob Ross, licensed through his estate
(Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.) I see you favor the white lotus gambit