Karn's Sylex enters tapped.
Players can't pay life to cast spells or to activate abilities that aren't mana abilities.
, , Exile Karn's Sylex: Destroy each nonland permanent with mana value X or less. Activate only as a sorcery.
(09/09/2022)
Players may always pay 0 life, even if an effect says they can’t pay life.
(09/09/2022)
An activated mana ability is one that produces mana as it resolves, not one that costs mana to activate.
(09/09/2022)
Other things may still cause players to pay life, such as a resolving spell or ability.
(09/09/2022)
If a spell or an activated ability that isn’t a mana ability has a cost that requires a player to pay life, that spell or ability can’t be cast or activated.
(09/09/2022)
Activated abilities contain a colon. They’re generally written “Cost: Effect.” Some keyword abilities are activated abilities (such as cycling) and will have colons in their reminder text.
