Thanks to the way poison works, Blightsteel is a one-hit kill if it's not blocked, but throwing creatures in front of this beast will see them killed or shrunken, and you'll likely still take some poison damage
It gives you the opportunity to delay the sacrifice, though, which can be really useful
Goblin Tutor , meanwhile, is a tutor card (that uses a dice, of course, to determine what card you're drawing) and it has a wizened old goblin actually teaching a small group of goblins about stuff
Its a sorcery that cant be made flexible with Rattlechains, it fights for the three-mana slot, and without Thought Scour or Liliana of the Veil, were likely never getting additional value from it
add in the potential for a large creature and card filtration and you have a winning threat
This became my first form of advertising, and eventually I had friends and bystanders ask me if I could paint a card for them