"By the tongues of a thousand serpents, this time I do not lie."
—Ahmahz il Kin, Suq'Ata diplomat

Peace Talks

This turn and next turn, creatures can't attack, and players and permanents can't be the targets of spells or activated abilities.

Visions

During this turn and the next one, players cannot declare an attack and cannot play spells or abilities that target any permanent or player.

Multiverse Gift Box

It affects the current turn and the next turn. This could affect the same player twice if they have two turns in a row, or it could affect different players. In a multiplayer game it affects exactly two turns, not a full round of turns.

Doesn’t skip the Combat Phase, just renders creatures unable to attack.

Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.