Koishi the Fleeting

When Koishi the Fleeting enters the battlefield,
gain control of target artifact with mana cost 1 or
less.
Creatures with power greater than Koishi the Fleeting power can't block it.
{r}:Koishi the Fleeting get +1/-1 until end of turn
{u}{u}: Koishi the Fleeting phases out
If I can take you alive, you'll be a great pet!