Jund Signpost

Whenever Jund Signpost becomes tapped, if
it's attacking, it gets +2/+0 and gains trample until end of turn and you sacrifice it at the
end of combat. Otherwise, choose 1 :
• Target creature with crew gets +X/+X,
where X is Jund Signpost's power.
• Target creature gets +X/+X, where X is
Jund Signpost's toughness.