Siege Modification 
Enchantment — Aura
Enchant creature or Vehicle As long as enchanted permanent is a Vehicle, it's a creature in addition to its other types. Enchanted creature gets +3/+0 and has first strike.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL