1: First equipment gives rengoku the ability to sacrifice a creature and create X black and red skeleton based on creature power.

2: 2 equipment reduces equipment cost down to 3

3: 3 equipment tap and sacrifice a creature, gain 2 {b}{r} only use this mana for skeleton spells or skeleton abilities in hand, battlefield, or graveyard.

4: 4 equipment all creatures gain the affects of any equipment or auras attached to rengoku, End of Hope.