Add Toxilargos to poison arenas. They can also be put in any tier arena.

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Tier 1: Similar to the Sloombargo, but poison themed http://wiki.spiralknights.com/Lichen#Sloom (Can't skip to Sloombargos for some reason, have to use the Sloom)

- Tackle
- Poison Cloud

Tier 2: Gains Lichen Colony-like spikes on its body, but purple.

- Tackle
- Spin Attack
- Poison Cloud

Tier 3: Same as current Toxilargo.

- Tackle
- Spin Attack
- Thorn Roots
- Poison Cloud
(same as current Toxilargo)