First strike (This creature deals combat damage before creatures without first strike.), haste (This creature can attack, and as soon as it comes under your control.)
Whenever Kellogg, Dangerous Mind attacks, create a Treasure token (A Treasure is an artifact with ", Sacrifice this artifact: Add one mana of any color.").
Sacrifice five Treasures: Gain control of target creature for as long as you control Kellogg. Activate only as a sorcery.
Vintage
Modern
and 
as soon as it comes under your control.)