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Assuming you mean Thopter Spy Network (blue card):
Similar Blue Cards:
1. Bident of Thassa – Draws cards when your creatures deal combat damage.
2. Consecrated Sphinx – Draws you cards regularly.
3. Sharding Sphinx – Makes Thopters for artifact creatures.
4. Vedalken Humiliator – Synergy with artifact creatures.
Reason: All are blue cards that either make artifact creatures or provide continuous card draw.
