12 cards where the text includes “proliferate” and the color identity ≤ RU and (the card is available on Paper) and it’s legal in Standard and it’s legal in Future Standard

Cacophony Scamp (Phyrexia: All Will Be One #124)
Experimental Augury (Phyrexia: All Will Be One #49)
Gitaxian Anatomist (Phyrexia: All Will Be One #52)
Ichormoon Gauntlet (Phyrexia: All Will Be One #56)
Mesmerizing Dose (Phyrexia: All Will Be One #62)
Reject Imperfection (Phyrexia: All Will Be One #67)
Serum Snare (Phyrexia: All Will Be One #68)
Staff of Compleation (Phyrexia: All Will Be One #242)
Tekuthal, Inquiry Dominus (Phyrexia: All Will Be One #71)
Thrummingbird (Commander Masters #858)
Vivisurgeon's Insight (Phyrexia: All Will Be One #77)
Volt Charge (Phyrexia: All Will Be One #155)

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