Sunpetal Oasis enters the battlefield tapped unless you control an enchantment.
: Add or to your mana pool.
Sacrifice Sunpetal Oasis: Add or to your mana pool.
: Return Sunpetal Oasis to its owner's hand.
: Add 
or 
to your mana pool. or to your mana pool.: Return Sunpetal Oasis to its owner's hand.
