+Bloodlust (2)
: Target creature gains haste until end of turn. (It can attack and this turn.)
Enchant creature
Enchanted creature gets +2/+1, has haste, and attacks each combat if able.
When enchanted creature dies, you may search your library for a card named Infectious Bloodlust, reveal it, put it into your hand, then shuffle.
Gatherer works better in the Companion app!