Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) When this creature enters, create two 1/1 colorless Thopter artifact creature tokens with flying.

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying. {1}{U}, Sacrifice two artifacts: Draw a card.

Flying At the beginning of your upkeep, if you control no Thopters other than this creature, return this creature to its owner's hand and create five 1/1 colorless Thopter artifact creature tokens with flying.

When this creature enters, create a 1/1 colorless Thopter artifact creature token with flying. Artifact creatures you control have haste. (They can attack and {T} as soon as they come under your control.)

Whenever one or more artifact creatures you control die, draw a card. This ability triggers only once each turn. {2}{W}, {T}: Create a 1/1 colorless Thopter artifact creature token with flying.