Merrataion, Gloomwing Titan

Merrataion, Gloomwing Titan is also a dragon
Flying, Swampwalk, skulk
This creature deals damage with its toughness
{p/b} Target creature gets -1/+1 until end of turn
"they steeled themselves, thinking it was a storm,
when they learned the truth, all hope fell away"
-Legacy of the Primordials