Gorgon Flail

Deathtouch as a portable property is the whole point: for two mana and a two-mana equip, this turns any creature into something that trades up against anything it touches in combat. The +1/+1 is incidental, just enough to nudge a token or a mana dork off the bottom statistical floor; the deathtouch is the part that rewrites how an opponent has to block. A single attacker carrying it forces unfavorable trades or chip damage every turn, and a defender carrying it walls off the ground regardless of the body underneath, since any nonzero damage now kills. That recurring threat-of-trade is the structural reason granted deathtouch reads stronger than printed deathtouch on a vanilla body: the property survives the death of the creature wearing it, sliding onto the next thing you control for another two mana. It pairs naturally with any source that deals damage to multiple creatures at once (a deathtoucher that pings each blocker is a wipe), and it lets a small repeated-damage creature behave like removal it can fire every combat. The equip tax keeps it honest by holding the menace to one creature at a time and tying the reattachment to your main phase, but the math of "any amount is enough" means the cheapest creature in play becomes a credible deterrent the moment it puts this on.