What it does
Strive appears on certain instants and sorceries that target one or more creatures, with the spell's cost increasing for each target beyond the first. The card lists a base cost plus a strive cost, like "this spell costs 
more for each target beyond the first." You choose how many targets you want when casting, then pay accordingly.
The most common mistake: you don't have to hit multiple targets. You can cast a strive spell on just one target for its base cost—the extra cost only applies to additional targets. Also, you choose targets and pay the increased cost as you cast it, so you can't add targets later, and if all targets become illegal, the spell still fizzles normally.
In Commander, strive spells scale beautifully with big mana, letting you buff your whole board or spread removal across multiple threats. Cards like Twin Bolt or Aerial Volley reward ramp-heavy decks that can dump excess mana into game-ending pumps or sweeps.













