Dakarus, New Explorer

When Dakarus enters the battlefield it explores
half the times equal to the amount of mana spent
to cast it.
Whenever one or more +1/+1 counters are put
on a creature double that amount of +1/+1
counters.
Creature you control have explore.
Dakarus enters the battlefield with one +1/+1
counter on it.
"Hahaha, The Future!"