Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
All creatures get -1/-0.
: All creatures get -1/-0 until end of turn.
"I breathed deeply, and suddenly I knew not who or where I was." -Taaveti of Kelsinko, Elvish Hunter