I really like the card
Call to the Kindred, thus I thought about in which decks this one could fit.
One would be the WUBGR Sliver deck. Since it is 5-coloured anyway,
Call to the Kindred seems to fit pretty good, especially since one additional sliver each turn can improve the army a LOT.
Another one would be a black-blue Zombie deck - does this one even exist? I never came across one, as far as I remember anyway
Just a suggestion I came up with after thinking a bit over
Call to the Kindred. Its a pretty good card for theme decks, and actually, I could even imagine a new deck around it. Let me see if it gets strong enough...