(Peat Oasis isn't a spell.)
Whenever Peat Oasis becomes tapped, it deals 1 damage to you.
All creatures have Swampwalk.
: Add to your mana pool. If you played a land this turn, Add to your mana pool instead.
: Add 
to your mana pool. If you played a land this turn, Add 
to your mana pool instead.
