Surge of ZealHow it works & interactions with other cards

What It Does

Surge of Zeal targets a single creature and applies a continuous effect to it and every other creature on the battlefield that shares at least one color with it. These creatures all gain haste until the end of the current turn. Because it uses the Radiance keyword, the spell checks the colors of the target creature upon resolution and then identifies all other valid creatures to receive the bonus.

Step-by-Step Resolution

First, you cast Surge of Zeal and choose a target creature. When the spell resolves, it checks the color or colors of that specific target. Then, it looks at every other creature currently on the battlefield. If a creature shares at least one color with the target (for example, if both are red), they gain haste. If the target is colorless, only that specific colorless creature is affected, as it doesn't share a color with anything else.

Common Mistakes

A frequent error is assuming that creatures entering the battlefield later in the turn will also have haste. The set of creatures affected by Surge of Zeal is determined only once—at the moment the spell resolves. Additionally, if the target creature becomes illegal (for instance, if it leaves the battlefield before the spell resolves), the entire spell fails and no creatures gain haste.

When to Play It

The best time to cast Surge of Zeal is during your pre-combat main phase after you have cast your creature spells for the turn. This ensures that your new arrivals can attack immediately. It is especially potent in multi-colored decks where one creature might share colors with several different groups of allies.

Interaction examples

Protecting the Target

Lightning Bolt

If you cast Surge of Zeal targeting a red creature, and your opponent responds by casting Lightning Bolt to destroy that target, Surge of Zeal will be removed from the stack with no effect. Because the target is no longer present when the spell tries to resolve, none of your other creatures will gain haste.

Clearing the Path

Abrade

You can use Surge of Zeal to give your red creatures haste for an aggressive swing. If your opponent has a blocking artifact creature, you can follow up with Abrade to destroy that blocker, ensuring your newly hasted army connects with the opponent's life total.