What it does
"Curaga" isn't a real Magic: The Gathering keyword or ability—it's actually a healing spell from the Final Fantasy video game series. You may be thinking of it because of the Final Fantasy Universes Beyond Commander sets, but the actual mechanic names on those cards use standard Magic terminology.
If you encountered "Curaga" on a card, it's likely the name of a specific card (perhaps an instant or sorcery themed around healing/lifegain) rather than a keyword ability. Card names don't carry inherent rules meaning—you'd read the card's actual text box for its effect.
If you can tell me the exact card or the ability text you're curious about, I'll happily break down how it works and where it matters in Commander. Otherwise, double-check the card name; you may be looking for something like "lifelink" or a specific lifegain spell.
Iconic cards with Curaga
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