Like most Magic: The Gathering cards, the value of Phyrexian Debaser depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Dominaria Remastered)
Sorry if you were excited to see me rehash all the great bonus sheet cards, but you already know how good Ponder, Opposition Agent, and all the rest are
This is great mana to card draw ratio when you are around four or more, so starting there I'll typically add in this into my card draw section
And the activated ability works as a double protection spell, saving Kogla and the human you bounce
Its got the odd cost because it cares about leaving the battlefield rather than entering it
Dismember Technically a colorless spell in spirit, since the colored pips are all Phyrexian mana, Dismember does a few things right