Tardif, The Terror Tamer

As an additional cost to cast, sacrifice 2 artifacts.
If Jasnah is on the battlefield, whenever a
non-token creature enters the battlefield,
gain 2 life.
Jasnah cannot attack players.
{2}Gain control of target artifact with CMC of
X or less until the end of your next turn, where
X is equal to Jasnah's power.