Roth, Captain of Six Seas

Whenever a red pirate enters the battlefield
under your control, create a colorless Treasure
artifact token.
Whenever a blue pirate enters the battlefield
under your control, draw a card, then discard a
card.
Whenever a black pirate enters the battlefield
under your control, target creature gets -X/-X
until end of turn, where X is equal to the
number of artifacts you control.