At the beginning of your end step, if you didn't cast any spells this turn, Woodlot Catacomb deals 1 damage to you.
,
: Add 
, 
or 
to your mana pool. Woodlot Catacomb deals 1 damage to you.

: Woodlot Catacomb becomes a 2/1 green and black Elf creature until end of turn. It's still a land.