Byeollungum description is wrong I think, in game it says increase damage on non-boss by 50%. RMS says its increase damage on boss by 5%. Don't think i've seen it mentioned yet.
Should the Draco and Tatacho cards be following the item descriptions or the scripts listed on RMS? The elements differ between the two (i.e., the descriptions have fire and earth but RMS has earth and neutral).
Those two cards are customized on heRO to affect fire and earth. The neutral property equivalent was given some time ago to Miming, which is currently only obtainable from Old Card Albums.
Description of Archer skeleton card in server is increase damage with bow weapon 10%, while in RMS is increase dmg with ranged atck 10%. I already test it with spiral