Pirate's Cove

Whenever a pirate enters the battlefield, put a
gold counter on Pirate's Cove. As long as Pirate's
Cove has 5 or more gold counters, pirates you
control get +2/+2. If there are 10 or more gold counters on Pirate's Cove, pirates you control
get +5/+5 instead.
{3}: Put a gold counter on Pirate's Cove.
"My treasure? If you want it, you'll have to go
through me... and him... and her..."-Carronade