Silumgar Sorcerer

Силумгарская Колдунья (Silumgar Sorcerer) (ru)

Creature - Human Wizard | Power/Toughness: 2 / 1 (CMC 3)
Flash (You may cast this spell any time you could cast an instant.)
Flying
Exploit (When this creature enters the battlefield, you may sacrifice a creature.)
When Silumgar Sorcerer exploits a creature, counter target creature spell.