Mecha: Pay 1; pair Mech with a Mechwarrior you control. Pair only as a sorcery.
Creatures with the "Mecha" ability cannot attack or block unless they are paired with a Mechwarrior.
Mechwarriors paired with Mechs cannot be the target of spells or abilities your opponents control. Damage overflows to the Mechwarrior when a paired Mech is dealt enough damage to destroy the Mech. If a Mech is destroyed but not dealt damage then the Mech is sent to the graveyard, and the Mechwarrior becomes unpaired.