Cheapest priced copy (Innistrad Remastered): $0.49 at Card Kingdom, near mint, their price list as of .
Collective Brutality 
Sorcery · Rare · Eldritch Moon · #85
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.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
7 printings · $0.49 to $6.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 85 | Rare | $0.59 | $1.49 |
| Innistrad Remastered | 101 | Rare | $0.49 | $0.49 |
| Innistrad Remastered | 308 | Rare | $0.59 | $0.79 |
| Innistrad Remastered | 375 | Rare | $0.69 | $2.49 |
| Eldritch Moon Promos | 85s | Rare | — | $4.49 |
| The List | EMN-85 | Rare | $0.49 | — |
| Secret Lair Drop | 1085 | Rare | $6.99 | $5.49 |
7 rulings from Wizards of the Coast
- 13 July 2016If 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.
- 13 July 2016You choose all of your modes at once. You can’t wait to perform one mode’s actions and then decide to choose more modes.
- 13 July 2016Effects that reduce the cost of spells reduce the total cost, including any escalate costs added.
- 13 July 2016Additional costs don’t affect a spell’s mana value.
- 13 July 2016If 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.
- 13 July 2016You can’t choose any one mode multiple times.
- 13 July 2016If 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).