Toshi, Acolyte of Shadow

As long as Toshi is attacking or blocking, you may cast instant spells by paying life equal to their mana value rather than paying their mana cost.

Whenever you cast an instant spell, choose up to one--
- Tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.
- Toshi phases out.

Agony Warp

Target creature gets -3/-0 until end of turn.
Target creature gets -0/-3 until end of turn.