User blog comment:KnocknickKnock/Lucy's Unused Power!!!!!!!/@comment-1595565-20140713202332/@comment-74.61.219.92-20140724181845

Actually Loke has only come on his own once when he was Gray's partner and the Virgo situation is unknown. I don't get where you got the tons of times from. Also it was explained either before the OS arc or after that because Lucy is becoming stronger they can pass through the gate freely but they still consume Lucy's magical reserves, go look at Loke vs Bicklow.

Also Lucy has already shown to combine her spirits powers and create combination attacks so no it isn't wishful thinking at all it is fact. This isn't potential power this is power she has right now that she doesn't use. Taurus axe has absorbed Aries wool and Scorpio Sand and created stronger attacks, Lucy has already done a Unison with Juvia, Scorpio has done a Unison with Wendy and Sagittarius has done a Unison with Fire Magic. It has been proven it can be done it's just not being done.