Sen Triplets
Alara Reborn β Mythic
Legendary Artifact Creature β Human Wizard
Sen Triplets rulings:
2020-08-07: The target opponent can't activate any abilities, including mana abilities.
2020-08-07: Activated abilities are written in the form β[Cost]: [Effect].β Some keyword abilities (such as cycling) are activated abilities and will have colons in their reminder texts.
2020-08-07: Triggered abilities use the word βwhen,β βwhenever,β or βat.β They're often written as β[Trigger condition], [effect].β Triggered abilities are unaffected by Sen Triplets.
2020-08-07: Abilities that create replacement effects, such as a permanent entering the battlefield tapped or with counters on it, are unaffected by Sen Triplets. Abilities that apply βas [this creature] enters the battlefieldβ are also replacement effects and are unaffected.
2020-08-07: You can't activate abilities of cards in the target opponent's hand.
2020-08-07: Sen Triplets doesn't allow you to play more than one land during your turn or change when you may cast spells from the target opponent's hand.