Ghesh Saltscale

Ghesh Saltscale's power is equal to the amount
of {r} spent to cast this spell plus one. Its
toughness is equal to the amount of {u} spent to
cast this spell plus one.
{t} Copy target red instant or sorcery spell with a
mana value less than Ghesh Saltscale's power.
Or copy target blue instant or sorcery spell with a
mana value less than Ghesh Saltscale's toughness.
A plunderer of spells.