Conjure Weak Elementals

You conjur elementals from the inner planes. You can summon up to four elementals, but they must have a total challenge rating of 1 or lower. The DM has the elemental's stats. When you lose concentration on the spell, the elementals don't disappear. Instead, the DM gains control of the summoned elementals. They become hostile to any non-elemental within one mile and begin destroying everything they can.