(Wooded Conclave isn't a spell.)
At the beginning of your upkeep, Wooded Conclave deals 1 damage to target creature you control.
All creatures have Swampwalk.
: Add or to your mana pool.
Sacrifice Wooded Conclave: Add or to your mana pool.
: Add 
or 
to your mana pool. or to your mana pool.
