karn's sylex enters the battlefield tapped.
players can't pay life to cast spells or to activate abilities that aren't mana abilities.
x, t, exile karn's sylex: destroy each nonland permanent with mana value x or less. activate only as a sorcery.
Clicking links to various merchants on this site and making a purchase can result in this site earning a commission. Affiliate programs include, but are not limited to, the eBay Partner Network, TCGplayer.com, CardKingdom.com.