Only a scheme card may be set in motion, and only during an Archenemy game. Only the archenemy may set a scheme card in motion. See rule 314, “Schemes,” and rule 904, “Archenemy.”
July 3, 2020 · Core Set 2021
Some spells and abilities instruct players to vote for one choice from a list of options to determine some aspect of the effect of that spell or ability. To vote, each player, starting with a specified player and proceeding in turn order, chooses one of those choices.
May 3, 2019 · War of the Spark
“Bolster N” means “Choose a creature you control with the least toughness or tied for least toughness among creatures you control. Put N +1/+1 counters on that creature.”
January 25, 2019 · Ravnica Allegiance
"Bolster N" means "Choose a creature you control with the least toughness or tied for least toughness among creatures you control. Put N +1/+1 counters on that creature."
April 27, 2018 · Dominaria
“Bolster N” means “Choose a creature you control with the least toughness or tied for least toughness among creatures you control. Put N +1/+1 counters on that creature.”
September 30, 2016 · Kaladesh
To manifest a card, turn it face down. It becomes a 2/2 face-down creature card with no text, no name, no subtypes, and no mana cost. Put that card onto the battlefield face down. That permanent is a manifested permanent as long as it remains face down. The effect defining its characteristics works while the card is face down and ends when it’s turned face up.
January 16, 2016 · Oath of the Gatewatch
“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.”