Daring Rockhunter

When Daring Rockhunter enters the battlefield,
it Explores.
{u}{r}: Move a +1/+1 counter to from one
creature you control to another.
When Daring Rockhunter enters the battlefield,
create a colorless Treasure artifact token with
"Tap, Sacrifice this artifact: Add one mana of
any color."
"Home fleet prospectors see gold as a means to
get the sea-smiths copper, brass, and steel."