Haste (This creature can attack,
and
as soon as it comes under your control.)
Whenever another creature you control with base power 1 enters, it gains
haste (This creature can attack,
and
as soon as it comes under your control.) until end of turn.
Whenever another creature you control enters, if it wasn't cast, put a +1/+1 counter on this creature and this creature can't be blocked this turn.