Certain spells and abilities can detain a permanent. Until the next turn of the controller of that spell or ability, that permanent can’t attack or block and its activated abilities can’t be activated.
July 3, 2020 · Core Set 2021
“Support N” on a permanent means “Put a +1/+1 counter on each of up to N other target creatures.” “Support N” on an instant or sorcery spell means “Put a +1/+1 counter on each of up to N target creatures.”
May 3, 2019 · War of the Spark
“Investigate” means “Create a colorless Clue artifact token with ‘{2}, Sacrifice this artifact: Draw a card.’”
January 25, 2019 · Ravnica Allegiance
"Investigate" means "Create a colorless Clue artifact token with '{2}, Sacrifice this artifact: Draw a card.'"
April 27, 2018 · Dominaria
“Investigate” means “Create a colorless Clue artifact token with ‘{2}, Sacrifice this artifact: Draw a card.’”
September 30, 2016 · Kaladesh
Meld is a keyword action that appears in an ability on one card in a meld pair. (See rule 712, “Meld Cards.”) To meld the two cards in a meld pair, put them onto the battlefield with their back faces up and combined. The resulting permanent is a single object represented by two cards.
August 26, 2016 · Conspiracy: Take the Crown
Certain spells and abilities can goad a creature. Until the next turn of the controller of that spell or ability, that creature attacks each combat if able and attacks a player other than that player if able.