Soul's Grace is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

You gain life equal to target creature's power.

Complete guide

Soul's Grace is a straightforward white instant that rewards you for the size of the creatures on the battlefield. By converting raw power directly into a boost for your life total, it can turn an opponent's massive threat into your own survival. Whether you are targeting your own champion or a monster across the table, this spell ensures your longevity in the game.

Harnessing Strength for Survival

Soul's Grace allows you to gain life equal to a target creature's power. Unlike some other life-gain spells that have a fixed value, the effectiveness of Soul's Grace scales as the game progresses and creatures grow. It doesn't matter who controls the creature; you only need to be able to target it to reap the benefits.

Step-by-Step Resolution

First, you cast Soul's Grace and choose a target creature. As the spell resolves, the game checks the current power of that creature. If the creature has a negative power, it is treated as zero for the purpose of life gain. Once the power is determined, you gain that much life immediately, and the spell is put into your graveyard.

Timing and Interference

A common mistake is forgetting that the power is checked only upon resolution. if your opponent uses a removal spell or a debuff in response to Soul's Grace, the amount of life you gain might change or be zeroed out entirely. If the creature is no longer on the battlefield when Soul's Grace tries to resolve, the spell will fail to resolve (fizzle) because its only target is gone, and you will gain no life.

When to Cast Soul's Grace

The best time to cast this spell is often in response to an opponent's pump spell or when a creature's power is temporarily boosted. Because it is an instant, you can use it during the combat phase after blockers are declared but before damage is dealt to ensure you survive a lethal swing.

Interaction examples

Reactive Life Gain

Swords to Plowshares

If an opponent targets their own creature with a spell to increase its power, you can cast Soul's Grace to gain life based on that new, higher power. However, be careful: if you cast Soul's Grace and your opponent responds with Swords to Plowshares on that same creature, the creature will be exiled before Soul's Grace resolves. In this scenario, Soul's Grace will have no target and you will gain 0 life.

Managing the Battlefield

Path to Exile

You can use Soul's Grace on a creature you intend to remove later. Suppose your opponent has a 5/5 creature. You cast Soul's Grace to gain 5 life. After the spell resolves and your life total increases, you can then cast Path to Exile to remove the threat from the board. This two-step process ensures you get the defensive benefit of the creature's size before it leaves the battlefield.

Guide written with AI from the official text and rulings. Official English text prevails.