Skylar's Tank from Hell

Haste, Menace, Trample
{t} Discard 2 cards: Deal 4 damage to any target.
{1} Timewalk: Shuffle this into your library.
{4}{t} Burrow: Gains shroud and can't attack or
block until {4}{ut}Unburrow
{2} Provoke: Make Skylar's Tank from Hell attack
another target player. Anyone may pay for this ability.
"ARGH! Take it!" -Skylar