The Mightstone and Weakstone
The Brothers' War Promos (PBRO #238s)
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The Mightstone and Weakstone
CMC: 5
Type
Legendary Artifact — Powerstone
Rules Text
When The Mightstone and Weakstone enters, choose one —
• Draw two cards.
• Target creature gets -5/-5 until end of turn.
: Add 
. This mana can't be spent to cast nonartifact spells.
(Melds with Urza, Lord Protector.)
Printing
The Brothers' War Promos (PBRO #238s)
rare
Illustrated by Ryan Pancoast
legendary