What kinds of challenges or obstacles await us in the drome arenas?

Question

Hello I wonder what kinds of difficulties await us in the drome arenas? When will they change?

Answer 1

I assume you are referring to the Combat Modifiers. The Tibiadrome will work in a 2 week rotation. For those 2 weeks there will be 2 Combat Modifiers chosen. These Combat Modifiers will last for the whole rotation. The current Combat Modifiers are:
 

• Somersault: All melee monsters have a 15% chance to teleport to the furthest player
• Going Down With Me: Monster trigger an aoe upon death that hits the lasthitter and all players around him for 25% of their current hp
• Exploding Corpses: Monsters explode in an aoe on death, hitting all players around them for 40% of their current hp
• That Escalated Quickly: Monsters that drop below 25% increase their power as if they were 5 wave levels higher
• The Floor is Lava: Every 15 seconds all but three small areas (two by two) will be filled with the effect. After 3 seconds all players outside of these small areas will suffer damage equal to 60% of their current hp.
• Beam me Up!: Every 15 seconds all but three small areas (two by two) will be filled with the effect. After 3 seconds all players outside of these small areas will will be teleported to a random position in the arena. Also, they will be affected by a strong paralyze and deal damage equal to 15% of the current hp of the player
• Tanked Up: Every 15 seconds all but three small areas (two by two) will be filled with the effect. After 3 seconds all players  outside of these small areas will be superdrunk for 10 seconds
• Sown Sorrow: Every 20/17/14/11/8 seconds, depending on the number of participants, a seed will spawn. If no players steps on it within 6 seconds it will explode and fear all players for 2 seconds.
• Bad Roots: Every 20/17/14/11/8 seconds, depending on the number of participants, a seed will spawn. If no player steps on it within 6 seconds it will explode and root all players for 3 seconds.

Sources:
https://www.test.tibia.com/forum/?action=thread&threadid=358
https://www.test.tibia.com/forum/?action=thread&postid=35027#post35027