OKANE KASEGU ORE WA STAR

{b}{r}: For every mana cost payment during upkeep, Megan the Stallion creates a 2/2 Money Horse.
{t} Target Money Horse can combine with three other artifacts to make "ORE WA STAR," a 6/6 Indestructible and Hexproof creature with trample that can be summoned once per round.