Hood Sickle is one of the trappable villains in Skylanders: Trap Team. An Undead element trap is required to trap him.
Hood Sickle appears in the Telescope Towers level, where Dreamcatcher sent him and other minions to defeat the Skylanders. Hood Sickle is some kind of reaper or executioner. However the Skylanders defeat him and lock him in a Undead element Trap.