Thalassian Legion D20 System Version 5.1 (Public)
Compiled and written by Knight-Commander Vandonna Voidmoon
D20 Version 1.0 Credited to Taldor Silvershield
The following is a blend of various roll systems used by the writer in the past.
The purpose of this is to balance both player power and player initiative, as well as provide a path for consequences of poor character decisions/rolls.
BE SURE TO CHECK AND NOTE THE BOLDED TEXT AT THE BOTTOM OF THIS TAB!
Intro Section I: D20 Combat Types
Part I: Player vs. Environment
The following is regarding PvE events.
PvE events will see Thalassian Legion membership versus NPC opponents in battle.
- Standard Fights
- This is, as the name entails, the standard, common form of combat—dealing DMG through successful rolls to an enemy until it is defeated.
- Swarm Fights
- Swarm fights are less common but much simpler. During swarm battles, in place of the DMG you’d do to an enemy, you kill a number of enemies.
- Example: If you’d deal 3 DMG from your roll, you dole out 3 kills instead.
- Swarm fights are less common but much simpler. During swarm battles, in place of the DMG you’d do to an enemy, you kill a number of enemies.
Part II: Player vs. Player
The following is regarding PvP combat.
PvP is not generally done during events, but used when two or more players wish to engage in combat with each other.
- Spars
- Sparring is the most common form of PvP practiced; a low-stakes bout for fun or training.
- Duels
- Dueling is the less common, more serious form of PvP; these usually have stakes and purpose.
For more information, see PvP.
Intro Section II: Roll Tables
Part I: Roll Types
Our D20 system does not have an initiative. Usually, when attending an event, you will start with one of two rolls when an enemy is engaged: combat or, if you’re told or so choose, stealth.
- Combat Rolls
- Combat rolls are the standard means to deal damage to opponents. Almost all events start with this roll.
- Combat rolls can have modifiers, and your DMG can have modifiers. These are separate things, however. Make sure to carefully read the text of your sheet to make sure you don’t confuse a combat roll modifier for a DMG number modifier.
- Combat rolls are the standard means to deal damage to opponents. Almost all events start with this roll.
- Environmental Rolls
- Environmental rolls are used either when acting in a hazardous environment (blizzards, acid rain, firestorms, etc.) or when an enemy attacks. Environmental rolls will have a DC Check you need to reach or surpass to avoid taking a set number of damage. You can add modifiers to your environmental rolls by various means that are listed in the following sections.
- Example: “DC check 10 or take 5 DMG.” You must get a 10 or above, or you take 5 damage unless you have an ability that reduces environmental damage or another person intervenes.
- Environmental rolls are used either when acting in a hazardous environment (blizzards, acid rain, firestorms, etc.) or when an enemy attacks. Environmental rolls will have a DC Check you need to reach or surpass to avoid taking a set number of damage. You can add modifiers to your environmental rolls by various means that are listed in the following sections.
Part II: Combat Table
- Healers may divide their healing amongst as many allies as they desire.
- Result numbers are not static and can be increased by your specialization, abilities, and stats..
- Players who roll high enough to deal damage/heal may instead opt to intervene for an ally.
- Regarding this, see notes on intervening in Section III.
| Roll | Result |
| 1 | -7 HP |
| 2-3 | -6 HP |
| 4-5 | -4 HP |
| 6-7 | -3 HP |
| 8-9 | -2 HP |
| 10 | -1 HP |
| 11-12 | +1 DMG/Healing |
| 13-14 | +2 DMG/Healing |
| 15-16 | +3 DMG/Healing |
| 17-18 | +4 DMG/Healing |
| 19-20 | +6 DMG/Healing |
Part III: Miscellaneous
Intervening
Intervening is, as the term describes, intervening to protect an ally from being damaged by a failed roll. To intervene for another person, you must either (Combat Round) get a high enough roll to deal damage or (Environmental Round) pass the DC check.
Notes:
- Communicate your intentions to your Intervene target before doing so; they must consent to the intervention.
- Intervening for an ally means you take the damage they would’ve received in their place.
- Damage taken from intervening is equivalent to the damage that the original target was going to take regardless of your own personal defensives unless you have the ability “Improved Intervene”.
- The DM is at liberty to create unintended consequences from intervening.
Intro Section III: Guided Aide
For the sheet template (if you don’t want to put the sheet in your TRP), see Template.
When beginning to fill out your sheet for the Thalassian Legion D20 System, there are several areas to fill out. However, this guide will help break them down into sections based on their simplicity to fill.
- Your Health
- Your Specialization
- Your Stats
- Your Combat Abilities
- Your Non-combat Proficiencies
If you still have trouble, you can contact any officer or the members of High Command for assistance.
You must have your Thalassian Legion D20 System Sheet already prepared when attending an event!
If you ask for help making a sheet minutes before or at the time of an event, you will be turned away!
We have nothing against you, but this is to be respectful to the event host and those attending.