Primordial Ooze attacks each combat if able. At the beginning of your upkeep, put a +1/+1 counter on Primordial Ooze. Then you may pay {X}, where X is the number of +1/+1 counters on it. If you don't, tap Primordial Ooze and it deals X damage to you.
The thick, moving mass from the beginning of evolution swallows and digests the animate and inanimate as it unthinkingly strives to continue its existence.
Near Mint - $1.100
Lightly Played - $900
Moderately Played - $800
Heavily Played - $700
Damaged - $600
Near Mint Spanish - $1.100
Lightly Played Spanish - $900
Moderately Played Spanish - $800
Heavily Played Spanish - $700
Damaged Spanish - $600