Claim the Precious

Unconditional creature removal has always paid a price in black, and the whole design conversation about a card like this is where the bill comes due. Doom Blade dodged it by restricting the target; Terror let big black creatures walk; Murder set the flat rate of three mana and asked for nothing more, but did it at instant speed. This one keeps the same clean "destroy target creature" text and the same converted cost, then quietly moves the effect back to sorcery speed and adds the Ring's temptation on top. The trade is subtle: you give up the ability to hold up removal on your opponent's turn, and in exchange your Ring-bearer advances a rung, gaining a piece of the tempting emblem's stacked benefits (immunity to blocks from higher-power creatures, a draw-and-discard on attack, eventually the sacrifice tax on the defender). Calling that a "drawback" gets the framing backward. The temptation is upside handed to the caster for free, so the flavor of corruption is doing the work a genuine restriction usually performs elsewhere. What actually balances the card is the timing concession: a kill spell you can only cast on your own turn is measurably worse than one you can cast on either. If you have a Ring-bearer worth tempting, this is Murder with a reward attached and a sorcery-speed asterisk; if you don't, it is simply a slower Murder, and the temptation is a line of text you ignore.