W: Low-mid value foils

Hey all! Looking for the following foils to bling out my standard grixis deck.  Valuing foils at TrollandToad.com prices.

2x Rakdos Keyrune
1x Barter in Blood (AVR)
2x Mutilate
2x Dreadbore
1x Rakdos's Return
1x Devour Flesh
1x Syncopate
3x Psychic Strike