Sastrias, One of the Monsters

When Sastrias, One of the Monsters enters the battlefield, create an assemblage token, then turn it into a 3/3 creature.
Whenever an assemblage you control is tapped, add one of these effects to it - "{t}: Discard a card, then draw a card."; "When assemblage deals combat damage to a player, draw a card."; "When Assemblage blocks a creature, create an assemblage