Use "DNA Surgery" to turn "Maha Vailo" into a Warrior-Type. When you activate "Gilford's" effect, equip as many Equip Spells as you can to "Maha Vailo", granting it up to 2000 extra ATK with its effect alone.
Use his effect to attach Equip Spell Cards to "Evocator Chevalier", including "Supervise". Use the effect of "Evocator Chevalier" to send 1 Equip Spell Card to the Graveyard to destroy one card your opponent controls.
Use his effect to attach Equip Spell Cards to "Gearfried the Swordmaster" to trigger his effect to destroy one monster your opponent controls.