Siege Spire

At the beginning of your upkeep, create one at
random:
• 2/4 guardian creature token with trample and
double strike
• 0/1 guardian creature token with "when this creature dies, if it wasn't sacrificed, create 1 Scrap artifact token, then draw a card
• 0/4 guardian creature token with defender,
flying and "{t} this creature deals 3 damage to
any target"