12/6 Gold WC Hero
If Delilah is not in play, remove from the game all Philistines in all discard piles. Capture Samson to discard all black Evil Characters in play or set-aside area. If this ability discards exactly 3 Philistines, restrict opponent from putting human Evil Characters in play for 3 turns.
Reworded it to reflect how it would be worded if it were actually made. I don't think it would be OP, just because in order for it to be effective, you would need a large defense (i.e. one that could produce three disposable Philistines soon enough for it to work). If you use a large defense with Phillies, you probably have to splash in some other black ECs like Canaanites, which would also fall victim to Samson's ability. You also would need to have a minimal offense with a big defense, which means if your Samson play leaves humans in territory or demons to block, you might still run into problems. It's a high risk/high reward play, which makes it very similar to Samson's Sacrifice (which makes sense), great for combo decks, but probably not usable in most cases, which is how high risk/high reward cards probably should be.