![Return to Ravnica: Chemister's Trick](/img/cards/return-to-ravnica/rtr-chemister-s-trick-149.jpg)
Chemister's Trick | Instant | | Target creature you don't control gets -2/-0 until end of turn and attacks this turn if able.
Overload {3}{U}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.") | Christopher Moeller
![Return to Ravnica: Counterflux](/img/cards/return-to-ravnica/rtr-counterflux-153.jpg)
Counterflux | Instant | | This spell can't be countered.
Counter target spell you don't control.
Overload {1}{U}{U}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.") | Scott M. Fischer
![Return to Ravnica: Essence Backlash](/img/cards/return-to-ravnica/rtr-essence-backlash-160.jpg)
Essence Backlash | Instant | | Counter target creature spell. Essence Backlash deals damage equal to that spell's power to its controller. | Jung Park
![Return to Ravnica: Firemind's Foresight](/img/cards/return-to-ravnica/rtr-firemind-s-foresight-162.jpg)
Firemind's Foresight | Instant | | Search your library for an instant card with mana value 3, reveal it, and put it into your hand. Then repeat this process for instant cards with mana values 2 and 1. Then shuffle. | Dan Scott
![Return to Ravnica: Izzet Charm](/img/cards/return-to-ravnica/rtr-izzet-charm-172.jpg)
Izzet Charm | Instant | | Choose one —
• Counter target noncreature spell unless its controller pays {2}.
• Izzet Charm deals 2 damage to target creature.
• Draw two cards, then discard two cards. | Zoltan Boros
![Return to Ravnica: Thoughtflare](/img/cards/return-to-ravnica/rtr-thoughtflare-203.jpg)
Thoughtflare | Instant | | Draw four cards, then discard two cards. | David Rapoza