student of malediction and eyes of the vestige

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if you get warlock's curse 1/encounter with SOM feat but you also get eyes of the vestige from dilettante power and take versatile master to make it an at-will, do you get multiple uses of warlock's curse?

similarly if you take defender of the wild and warden's lunge as a dilettante power, do you get to mark more than 1/encounter?