The Soul Stone

one generic mana one black mana Legendary Artifact — Infinity Stone

Indestructible

tap this permanent : Add one black mana .

six generic mana one black mana , tap this permanent , Exile a creature you control: Harness The Soul Stone. (Once harnessed, its ∞ ability is active.)

∞ — At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.

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60.43 $

Foil 124.85 $

10 printings

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The Soul Stone rulings

2025-09-19
Being harnessed isn't copiable. If something else becomes a copy of The Soul Stone, it must be harnessed separately. Similarly, if The Soul Stone is already harnessed and becomes a copy of something else, it stays harnessed, though it's very likely that won't be relevant until that copy effect ends.
2025-09-19
"Harnessed" is a designation that the permanent has once an ability instructs you to harness it. It has no special rules meaning other than being a designation that the ∞ ability (and, theoretically, other effects) can see.
2025-09-19
Until it is harnessed, The Soul Stone doesn't have the ability listed after the infinity symbol. It also doesn't have that ability in zones other than the battlefield.

The Soul Stone keyword rules

Indestructible Rule 702.12

Indestructible is a static ability.

A permanent with indestructible can’t be destroyed. Such permanents aren’t destroyed by lethal damage, and they ignore the state-based action that checks for lethal damage (see rule ).

Multiple instances of indestructible on the same permanent are redundant.