i have all of those. though the prices of necro gardnas are rising exponentialy. i wee you were makin a lightsworn. i would steer clear of those, as they arent that fast at the current meta game. plus there are some decks that really mess up their flow.
i would go for a light burial. as in it is a variation on a lightsworn. using pleaguespreader zomby and burial from a different dimention. dump then remove then get back style. it synchros very fast plus the fact that it speeds throught the deck. gives you an edge on your opponent. plus pleaguespreader has his own deck scheme. hes actually the new meta. so i wold say give up lightsworns and head in the new direction. hope this helped