[Artefacts] The WhipBlades

Three weapons based on the Ivy Blade from 'Soul Calibur' so you can get an idea of how they look/ operate:

A +2 Holy icy blast whipblade - LG

– Grants wielder the exotic weapon proficiency feat (lesser power)
– Sword detects magic at will (lesser power)
– Deals +1d6 of cold damage on a successful attack (always active)
– Deals an extra +1d10 of cold damage on a critical hit
– Sword damage 1d8 (19-20 x2 crit)
– Whip damage 2d3 (x2 crit) – this is lethal damage
– INT:13, WIS:13, CHA:11, EGO: 10
– Deals an extra 2d6 damage to Evil creatures
– Forged out of Cold Iron

A +3 flaming burst whipblade of Dragonbane – LG

– Speaks X & Y
– Grants wielder the exotic weapon proficiency feat (lesser power)
– Has 10 ranks in Intimidate (+12) (lesser power)
– Deals +1d6 of fire damage on a successful attack (always active)
– Deals an extra +1d10 of fire damage on a critical hit
– Sword damage 1d8 (19-20 x2 crit)
– Whip damage 2d3 (x2 crit) – this is lethal damage
– INT: 14, WIS: 10, CHA: 14, EGO: 14
– +5 enhancement and deals extra 2d6 damage against Dragons
– Forged out of Mithral

A +3 shocking burst whipblade of Wounding – LG

– grants wielder the exotic weapon proficiency feat (lesser power)
– Deals +1d6 of electricity damage on a successful attack (always active)
– Deals an extra +1d10 of electricity damage on a critical hit
– Sword damage 1d8 (19-20 x2 crit)
– Whip damage 2d3 (x2 crit) – this is lethal damage
– INT: 12, WIS: 12, CHA: 10, EGO: 11.
– Wounding deals 1 point of CON damage
– Forged out of Adamantine

One wielder has all 3 WhipBlades in their possession the following occurs:
– Magic Merge: where each weapon gains a Magical bonus equal to the total of each individual WhipBlade: +7
– One Ego: where all EGOs combine to equal: 33 (as do INT {39}, WIS {35}& CHA {34})
– Elemental Synchronise: making a INT check of DC (10 + CR of enemy) two of the blades can forgo their bursting ability in order to change their +1d6 elemental damage to one that a creature is vulnerable to. This check made at the start of the encounter (by DM)
– The WhipBlades can be commanded to act like Spiritual Weapons (usable 7 times a day plus wielders CHA bonus) – AC:19, HP: 12, Hardness: 17
o Grants a flanking to each WhipBlade (not allies)
o Can attack from any direction
o Ignores SR as not a spell

Feedback/ critique be appreciated.

And suggestions for names too