Amakeos, Fount of Fates

Pay 1 life: Add {c}. Activate this ability only as a sorcery and no more than X times each turn,
where X is the number of legendary permanents
you control. Spend this mana only to cast
legendary spells or to activate abilities from
legendary permanents.
{5}, Exile Amakeos: Put target legendary card in
your graveyard on the bottom of your library.