Treacherous Pit-Dweller [Avacyn Restored] Human Rebel Cleric and its activated abilities can't

and its activated abilities can't be activated unless they're mana abilities

Set: Fifth Edition Type: Artifact Rarity: Rare Cost: {5} {5}

Set: Battles of Legend: Hero's Revenge Card type: Synchro/Effect Monster Rarity: Secret Rare Attack: 3000 Defense: 2800 1 WIND Machine Tuner + 1+ non-Tuner monsters If this card is Synchro Summoned: You can activate 1 of these effects

Set: Hidden Arsenal 2 Card type: Effect Monster Rarity: Secret Rare Attack: 2300 Defense: 1300 When this card is Tribute Summoned by Tributing a "Genex" monster

Set: Urza's Saga Type: Enchantment Rarity: Common Cost: {1}{W} {W}: The next time a red source of your choice would deal damage to you this turn

Treacherous Pit-Dweller [Avacyn Restored] Human Rebel Cleric and its activated abilities can'tSet: Avacyn Restored Type: Creature Demon Rarity: Rare Cost: {B}{B} When Treacherous Pit Dweller enters the battlefield from a graveyard, target opponent gains control of it. Undying (When this creature dies, if it had no +1 +1 counters on it, return it to the battlefield under its owner's control with a +1 +1 counter on it.)