As special sets arent available in Booster Boxes, getting your hands on an ETB is the often the most affordable and exciting way to collect
Whenever a creature you control dies, put it on the bottom of its owner's library
//// Megatron, Destructive Force Color indicator: red, white, black Legendary Artifact Vehicle 4/5 Living metal (As long as it's your turn, this Vehicle is also a creature.) Whenever Megatron attacks, you may sacrifice another artifact
What makes him very strong is his metalcraft to equip for free all day long if you control at least three artifacts, which is so easy since it counts lands and tokens, and with the card draw combined with that free equipping, he is an Equipment essential
Looking back now, the tease definitely underplayed its significance