Yes, the castle drops is ;
Emprium Aurora ( All stat +25 ) , its like the aura your champ is wearin in ur sig, worth around 700-800 Donation Tokens( available in 4 color which is Purple,Blue,Orange,Green )
Imperial Valk helm ( available in 4 color which is Purple,Blue,Orange,Green ),
Gold Valk Helm ( Just like regular valk helm except that you got +3 all stats ),
Forsaken Solider Card ( Gain immunity to stone curse ) ,
Angeling / Deviling / Leafring / Archangeling RS ( Diff castle diff drops, All stat +10 , Decrease walking speed by 10%, 1 slot )
Flapping Angeling / Deviling wings ( Increase movement speed by 15% )
Castle Red boxes ( 12 Ygg tix, 12 Yggseed tix, 3 Edp bottle tix ).
OR
Type @mi 1326 for Aldebaran Castle. @mi 1334 I think for Geffen. @mi 1350 For Payon. @mi 1358 for Prontera.
Drop rate is lower than 3%, except for Castle Red boxes ( 100% ).
n___n , hope this helps.