Escalate—Discard a card. (Pay this cost for each mode chosen beyond the first.)
Choose one or more —
• Target opponent reveals their hand. You choose an instant or sorcery card from it. That player discards that card.
• Target creature gets -2/-2 until end of turn.
• Target opponent loses 2 life and you gain 2 life.
7/13/2016 You choose all of your modes at once. You can’t wait to perform one mode’s actions and then decide to choose more modes.
7/13/2016 You can’t choose any one mode multiple times.
7/13/2016 If two of the chosen modes of an escalate spell target a creature, you may choose the same creature for each mode’s target, or choose different creatures. The same is true if the chosen modes target a player (or opponent).
7/13/2016 If one target of an escalate spell becomes illegal, the other targets will still be affected. If all of the targets become illegal, the spell won’t resolve.
7/13/2016 Effects that reduce the cost of spells reduce the total cost, including any escalate costs added.
7/13/2016 If an effect allows you to cast a spell that has escalate without paying its mana cost, you pay escalate costs for that spell if you choose more than one mode.
7/13/2016 Additional costs don’t affect a spell’s converted mana cost.
You can ditch an instant, use CB to kill a creature, then replay either with SM.
I don't know guys, this card seems pretty strong.