Rogue Scavenger

When Rogue Scavenger enters the battlefield, flip
a coin. If it comes up heads, you gain 1 life. If it
comes up tails, put a +1+0 counter on target
Rogue you control.
{2}{c}{c}, {t}: Search your library for an artifact
and put it into your hand. Then shuffle your
library. Activate this ability only if your devotion
to colorless is 4 or greater.
"Their skills are invaluable."