Laser Rifle

indestructible, uncounterable
When this enters the battlefield if black mana
was used to cast this * is 50 if green was
used to cast this * is 60
If red was used to cast this put 5 +1/+1's on this
When this attacks return it to hand at the
beginning of your next end step
{t}this deals 10 damage to target creature
{ut}(activate only once per turn) target creature
gets +*/+20, this cannot attack this turn