Eidolon of Obstruction

First strike
Loyalty abilities of planeswalkers your opponents control cost {1} more to activate.

Magic Online Promos

Death turned admirable conviction into pointless intransigence.

Theros Beyond Death

Theros Beyond Death Promos

Eidolon of Obstruction doesn’t replace the loyalty cost of activating a loyalty ability or cause it to cost more loyalty to activate. It just adds a mana component to the ability’s activation cost.

Loyalty abilities cost just {1} more to activate, no matter how much loyalty they cost to activate.