Plated Slagwurm

In an era built around artifacts and a glut of pointed removal, an 8/8 that opponents simply could not target was a genuinely new pitch for a green finisher. The protection here is the "troll shroud" wording that predated the hexproof keyword: spells and abilities your opponents control can't touch it, but you can, so your own Giant Growth or combat trick still lands fine. That asymmetry is what makes the design coherent: you keep the option to pump or buff it while the opponent's Terror or aura-based control reads as a dead card. The wurm is otherwise a blunt instrument, though. No evasion, no trample, no ability beyond the protection, so it walks into chump blockers all day, and any sweeper, edict, or gang-block sends it to the graveyard regardless of what it can't be targeted by. Untargetability answers spot removal and nothing else, while the things big green creatures actually fear (mass destruction, sacrifice effects, raw chump-blocking) all sail right past the keyword. It represents a specific solution to the "how do I keep my threat alive" problem, stapling the protection onto the body rather than holding up a counterspell or hanging a fragile aura on something killable. Later green fatties layered trample and reach and triggered value on top; this one bet everything on size plus the promise that the removal spell in hand would read "can't target."