So many people are showing their lack of vision with Soulseeker. I literally can't think of a single deck that doesn't get hit hard by having a certain minion stolen. It doesn't even have to be a "big" deck. King Krush, Sire Denatrius, Mutanus, Theotar, Mordresh, Neptulon, Edwin VanCleef, the mage and shamans' parrots.
At best, it literally ruins your opponent's win condition. At worst, you play a minion that is not that good but is very useful for your opponent, like a card draw minion from an aggro deck.
Remember, no constructed deck has trash cards, every card is selected for it for a reason and Soulseeker disrupts that.
It is true, every deck can be hit hard by having a certain minion stolen.
The problem is, if you steal one of the less important minions, you seriously lost quite some tempo.
The "At worst" part that's where you're wrong, though. If you play against aggro and this is in your hand, it's a dead card.
If you play it and you get, say, a 3/3 out of it .... then you spent 5 mana on a 3/3. And if it's a special minion, then it probably won't synergize with your deck.
Your opponent, however, probably does not care at all as long as he does not draw the soulseeker you did put in his deck. He's just happy that instead of a 4/7 taunt minion you spent 5 mana on a 3/3 that just happened to be identical to a card he has in his deck.
Also note that if you are an aggro deck you probably won't play soul seeker, right?
So ... you maybe play a control deck. Which means, you have win conditions of your own. Which you now allow your opponent to steal, too.
This card is highly meta-dependent.
a) it's bad against aggro
b) it's bad in an aggro deck
c) if you play it in a control deck, make sure you don't have a single win condition that could be destroyed by your opponent playing soul seeker
d) if you play it in a control deck, make sure you don't have a high concentration of great non-battlecry fatties in your deck. like, say, collossal minions.
For me that's a long list of contras. I am not 100% sure, but I also doubt this will see a lot of play
2
So entitled, wanting to actually be allowed to play the game.
2
I hate cards like this because they are good for everyone but completely nuts for druid, as if that class needs more ridiculous cards.
1
I wouldn't say it's OP but we can all agree it's a meta defining card. You have tools to counter it, such as Theotar, Zul'jin, Mutanus and maybe even Okani.