Animate Lesser Dead

This spell revives one lesser creature of CR 2 and below that you can see within 30ft. The creature is undead and has 3/4 of its normal hit-points (rounded up). The creature obeys and tries to do what you say to its best ability. If the creature dies or 5 hours have passed it turns to ash and cannot be revived again. If the creature is humanoid it causes other humanoid creatures of its race or similar race to attack it. If the creature makes any unarmed attacks on any other non-undead or non-construct creature it deals a bonus 1d4 necrotic damage. You can only have 3 creatures reanimated at once using this spell. Every hour the creature is alive you must roll a DC Int check of 12 or higher otherwise the creature turns to ash