Guilds of Ravnica

Sure Strike | Instant | | Target creature gets +3/+0 and gains first strike until end of turn. | Steve Argyle

Justice Strike | Instant | | Target creature deals damage to itself equal to its power. | Clint Cearley

Response | Instant | | Response deals 5 damage to target attacking or blocking creature. | Daarken

Expansion | Instant | | Copy target instant or sorcery spell with mana value 4 or less. You may choose new targets for the copy. | Deruchenko Alexander