Serlvak, Dragon of steel

Trample, Flying
(If {b/r} was paid for with black mana, Serlvak,
Dragon of steel has Death touch, if it was paid for
with red mana Serlvak, Dragon of steel has
first strike).
{t}{x}{b/r}: Serlvak, Dragon of steel deals {x} damage
to {x} targets divided by two, rounded down.
Once a relic, it got renovated, cast into a deadly form