Nick, Eternal SE

: Nick, Eternal SE's Loyalty is equal to the mana spent to cast him.
-X: Create X Gear Tokens. Creatures with converted mana cost X or less cannot attack you or a planeswalker you control until your next upkeep.
+4: Gain control of target permanent. Give the owner of target permanent X Gear Tokens you control, where X is the cost of the permanent.