Survivalist Scoundrel

Tagalong {w}{g}, pay 1 life (When you attack
with one or more creatures, you may put this
card onto the battlefield for it's tagalong cost. If
it's a creature, it enters tapped and attacking.)
{w/b}: Survivalist Scoundrel gets +1/+0 and
gains trample and death touch until end of
turn. Activate this ability only once on your
turn and only if you lost or gained life
since your last turn.