Riftbound Buff: what it does
GlossaryBuff is the Riftbound game action of placing a Buff counter on a unit. A unit can only ever hold one Buff counter at a time — an effect that would Buff an already-Buffed unit simply does nothing further, so stacking multiple "buff" instructions on the same unit doesn't compound unless something explicitly grants permission to do so.
How Buffing and Buff counters work
Buffing places a single Buff counter on a chosen unit, if it doesn't already have one. A unit that already carries a Buff counter can still be chosen for a further Buff instruction — it just won't receive a second counter from it, since only one Buff counter can be on a unit at a time unless a specific effect says otherwise.
"If it was buffed this way" clauses
Because a Buff instruction can silently fail to add anything (when the unit is already Buffed), some cards check whether the Buff actually happened before doing something further — a clause like "if it was buffed this way, draw a card" only pays off when the counter was genuinely placed, not just when a unit was chosen. Read the printed condition carefully rather than assuming every Buff instruction always lands. See the Game Actions guide for how Buff compares to Riftbound's other counters and modifiers.
Buff FAQ
What does Buff mean in Riftbound?
Buffing places a Buff counter on a chosen unit — but only if it doesn't already have one; a unit can hold just one Buff counter at a time.
What happens if you try to Buff an already-Buffed unit?
The unit can still be chosen, but no additional counter is placed — the instruction simply doesn't add anything further.
Why do some cards say "if it was buffed this way"?
Because a Buff instruction can fail to place a counter (on an already-Buffed unit), that clause checks whether the Buff genuinely happened before triggering a further effect.