Light-Blood Assassin

Double-Handed (When this creature deals damage to a target creature, deal it's damage to another creature)
When Light-Blood Assassin is summoned, destroy a target creature. If this was an allied creature, heal it's owner 4 health.
When Light-Blood Assassin destroys a creature, summon a 0/1 Light's Blood White Elemental creature token with "Grant Light-Blood Assassin +1/+0"