Skull of Ramos

{T}: Add {B}.
Sacrifice this artifact: Add {B}.

Eye of Ramos

{T}: Add {U}.
Sacrifice this artifact: Add {U}.

Tooth of Ramos

{T}: Add {W}.
Sacrifice this artifact: Add {W}.

Heart of Ramos

{T}: Add {R}.
Sacrifice this artifact: Add {R}.

Horn of Ramos

{T}: Add {G}.
Sacrifice this artifact: Add {G}.

Ramos, Dragon Engine

Flying
Whenever you cast a spell, put a +1/+1 counter on Ramos for each of that spell's colors.
Remove five +1/+1 counters from Ramos: Add {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}. Activate only once each turn.