Weaver of Forbidden Spells

Indestructible
Weaver of Forbidden Spells cant be countered.
When Weaver of Forbidden Spells enters the battlefield, you may cast three nonlegendary
spells from your hand without paying their
manacost.
Spells you cast may be cast for half their
manacost rounded up.
{10}: Cast up to ten spells you own from outside
the game without paying their manacost.