mtg cards that let you cast from exile Boarding Party (CMR) #163 Let the Galaxy Burn (40K)

(Choose up to three creatures you control to be in your group until you form a new one.) Whenever you attack or block, if CARDNAME is in your group, creatures in your group get +1/+0 until end of turn

Mind you, you're also paying 7 mana for this effect

1 2 3 "Magic: The Gathering Comprehensive Rules" (PDF)

Alternatively, you could go the spell route and include cards like Relentless Assault, Final Fortune,Last Chance and Warriors Oath to guarantee yet another round of combat to close out a game but that seems like another deck entirely

Cardsphere usually sets the price around 80-95% of the cards value

Malevolent Hermit Regular version: $3.49 Full art: $8.99 As one of the worlds biggest Spell Pierce fans, I may be slightly biased with this one