Metaltooth

Description
If you have another Mech minion, this minion has Rush.

Interactions
If Metaltooth is your only Mech on the board, summoning S.I.L.V.E.R. will make Metaltooth gain Rush, but S.I.L.V.E.R. itself will not gain Rush.

Note the wording: that Metaltooth *has* Rush, and does not *gain* Rush. Think of it as an "aura" buff, that disappears as soon as the condition is no longer met. It means that if you summon two Metalteeth on the same turn, then move and attack with one, the second will become exhausted when the first one dies.

Balance Changes
v. 1.92 - added with the Immortal Vanguard expansion.

Grammar
The plural is "Metalteeth". :-)