Kor Blademaster

Double strike
Equipped Warriors you control have double strike.

Infiltration Lens

Whenever equipped creature becomes blocked by a creature, you may draw two cards.
Equip {1}

Equipped creature gets +10/+10 and loses flying.
Equip {8} ({8}: Attach to target creature you control. Equip only as a sorcery.)

As long as Kitesail Apprentice is equipped, it gets +1/+1 and has flying.

Other Kor creatures you control get +2/+2 for each Equipment attached to Armament Master.

Whenever you cast an Aura, Equipment, or Vehicle spell, draw a card.

Metalcraft — Auriok Edgewright has double strike as long as you control three or more artifacts.

Equipped creature gets +1/+1 for each other creature you control that shares a creature type with it.
Equip {2}

When Kor Outfitter enters the battlefield, you may attach target Equipment you control to target creature you control.

As long as Kor Duelist is equipped, it has double strike. (It deals both first-strike and regular combat damage.)