Flamescroll Celebrant
Creature — Human Shaman
Whenever an opponent activates an ability that isn't a mana ability, this creature deals 1 damage to that player.
: This creature gets +2/+0 until end of turn.
Revel in Silence
Instant
Your opponents can't cast spells or activate planeswalkers' loyalty abilities this turn.
Exile Revel in Silence.
Uriah Voth
Magic Online Promos (PRM)
• #90256Rulings
An activated ability that costs mana to activate is not a “mana ability” unless it could also produce mana and has no targets.
(wotc • 2021-04-16)
Activated abilities contain a colon and appear in the form “[Cost]: [Effect].” Some keywords (such as equip) are activated abilities and will have colons in their reminder texts. Loyalty abilities of planeswalkers are also activated abilities.
(wotc • 2021-04-16)
Casting Revel in Silence in response to a spell or ability won’t affect that spell or ability. That is, it’s not countermagic.
(wotc • 2021-04-16)
Rulings
An activated ability that costs mana to activate is not a “mana ability” unless it could also produce mana and has no targets.
(wotc • 2021-04-16)
Activated abilities contain a colon and appear in the form “[Cost]: [Effect].” Some keywords (such as equip) are activated abilities and will have colons in their reminder texts. Loyalty abilities of planeswalkers are also activated abilities.
(wotc • 2021-04-16)
Casting Revel in Silence in response to a spell or ability won’t affect that spell or ability. That is, it’s not countermagic.
(wotc • 2021-04-16)