Equipped creature gets +1/+0 and has first strike.
Equip
"Phyrexians can't corrupt what they can't get close enough to touch."
Illustrated by Marc Simonetti · Mirrodin Besieged · #143
There are no rulings for Viridian Claw.
Equipped creature gets +2/+0 and has first strike.
Equip (: Attach to target creature you control. Equip only as a sorcery.)
First strike, haste
Equipped creature has first strike and haste.
Crew 1
Equipped creature has flying and first strike.
During your turn, equipped creature gets +2/+0 and has first strike. (It deals combat damage before creatures without first strike.)
Equipped creature has first strike, trample, and haste.
Equipped creature has first strike.
As long as equipped creature is a Human, it gets +1/+1.