No

This spell can't be countered
Split-Second, Flash, Hexproof, Indestructible
Companion — Your starting deck contains only
cards named No.
A deck can have any number of cards named No.
No's power and toughness are each equal to the
number of cards named No in your starting deck.
{0}: Counter target spell, activated ability, mana ability, or triggered ability. This ability can't be countered.