Talent of the Telepath

The cards will be put into their owner’s graveyard after they resolve, not yours.

You cast the instant and/or sorcery card(s) from your opponent’s library as Talent of the Telepath is resolving. Ignore timing restrictions based on the card’s type. Other timing restrictions, such as “Cast [this card] only during combat,” must be followed.

Check to see if there are two or more instant and/or sorcery cards in your graveyard as the spell resolves to determine whether the spell mastery ability applies. The spell itself won’t count because it’s still on the stack as you make this check.