Torm's Arena

A golden beam of light shines down from the heavens at a point you can see within range.  A 10-foot-radius Sphere forms at the point and tugs at the creatures there.  Each creature within 10 ft of the sphere but not in it, must succeed on a Strength saving throw or get pulled into the Sphere  All creatures inside the radius are automatically pulled into the Sphere.  Creatures that enter the Sphere are sent to a temporal reality that resembles a Colosseum.  The Colosseum is round with a diameter of 250 ft with six large closed gates that lead to the center.   The stands, where 40,000 spectators sit, is 20 ft higher than the ground which consists of hard yellow dirt.  The caster can choose up to 6 creatures that enter the Sphere, the armor of those creatures is magically altered to appear as Silver and Leather Armor with a Torm's White Gauntlet depicted on the chest.  

From the Outside of the Sphere, the Colosseum can be seen in all it's Glory.  With all combatants clearly in sight.

Each creature, when entering the Colosseum must re-roll Initiative.  As well as make a Strength or Charisma Saving Throw.  The result of the Saving Throw determines how the crowd reacts to your presence in the Colosseum.  1 x Torm's Coin can be used to automatically roll a 20.  When this is done, the Coin is destroyed.

Less than 11:  The Colosseum erupts in laughter, as the crowd boos and heckles the creature.  (-2 to All Attack Rolls)
12 - 13:  The crowd treats the creature as if they just lost their last battle.  Shouting to go back where they came from!  (-1 to All Attack Rolls)
14 - 15:  The crowd is anxious to see what this Gladiator has to offer!
16 - 17:  Hundreds of spectators chant your name!  (+1 to All Attack Rolls)
18 - 19:  Thousands of spectators chant your name!  (+2 to All Attack Rolls)
Greater than 20:  Tens of Thousands of spectators chant your name! (+3 to All Attack Rolls)

Creatures that fall to 0 hit points within the Colosseum fall Unconscious but do not make death saving throws, and are shunted outside of the sphere if they are still at 0 hit points at the start of their next turn.

Beginning on the third round inside the Colosseum.  The caster rolls a 1d6 to determine if one of the six large gates will open.  If the caster rolls 3-6, the gates remain closed.  If the caster rolls 1-2, the caster rolls 1d6 to determine which gate opens.  The Monsters that emerge from the gate are neutral alignment and are enemies of all Gladiators.  Only 1 gate can open during the duration of the spell.

1:  6 Thugs
2:  2 Giant Spiders for each creature.  (Maximum 8)
3:  1 Ogre for every 1 creature.  (Maximum 3)
4:  1 Minotaur for every 1 creature (Maximum 3)
5:  1 Gladiator for every 2 creatures.  (Minimum 1)
6:  1 Hill Giant for every 4 creatures.  (Minimum 1)

The Spell ends when there are no enemies remaining or after 10 minutes.  All creatures that were not defeated are returned to their place of origin with 1 x Torm's Coin in their hand.

Torm's Coin: Platinum Coin with Torm's Gauntlet magically inscribed onto it. (Worth aprox. 50gp)