Imp Swarm
Enchantment
Conjuration
Chaos
Level 4
Charges: 2
Each turn, summon 2 temporary imps near the caster
Each imp is either a Fire, Spark, or Iron imp
Lasts 4 turns

Attributes:

4Duration
8Minion Duration
3Minion Damage
5Minion Health
3Minion Range
2Num Summons

Upgrades:

3 - Dark Swarm
Imp Swarm can also summon Rot, Void, and Insanity Imps
Adds the Dark tag
Imp Swarm gains 1 num summons
3 - Metal Swarm
Imp Swarm can also summon Copper, Tungsten, and Furnace Imps
Adds the Metallic tag
Imp Swarm gains 1 num summons
4 - Endless Swarm
Every 6 turns, summon 4 temporary imps
Always Active
6 - Elite Swarm
Imp Swarm gains 5 minion health
Imp Swarm gains 3 minion damage
Imp Swarm gains 3 minion range