MTG Salvation

All creatures get -2/-2 until end of turn.

Splice onto Arcane 3BB (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Each opponent exiles cards from the top of their library until that player has exiled cards with total mana value 20 or more.

Each opponent exiles cards from the top of their library until that player has exiled cards with total mana value 20 or more.