CloudedLogic
Villager
Reading this made me think of Legend of the Five Rings 3rd edition. It has a few ways for players (and enemies) to interact with Initiative after the fact.Order of Combat
Any effect that would normally occur at the start of a creature’s turn occurs at the start of the round on which that turn will take place. Any effect that would normally occur at the end of a creature’s turn occurs at the end of the round on which that creature’s turn took place.
Initiative
At the start of the first round, roll a die based on your character’s size to determine your Initiative.
Size Initiative Die Tiny 1d4 Small 1d6 Medium 1d6 Large 1d8 Huge 1d10 Gargantuan 1d12
Creatures take turns in ascending order of Initiative. If two or more PCs have the same Initiative, the players decide what order their characters take their turns in. If two or more monsters or NPCs have the same Initiative, the DM decides what order they take their turns in. If any PCs have the same initiative as any monsters or NPCs, they take turns in descending order of Dexterity scores, with PCs winning ties.
Your Turn
On your turn, you can move up to your speed and take one action and up to one bonus action. The actions and bonus actions you take during your turn determines your Initiative on the following round.
Attacks
Whenever you make an attack on your turn, roll the damage die of the weapon used to make the attack, or 1d4 if the attack was an unarmed strike. The highest result rolled this way on your turn becomes your Initiative on the next round.
Spells
Whenever you cast a spell on your turn, roll 1d4 if the spell requires verbal components, 1d4 if it requires somatic components, and 1d4 if it requires material components, and add the results together. The total is your Initiative on the next round.
Items
Whenever you use an item or activate a magic item on your turn, roll 1d6. If the item had to be retrieved from a pack or other container, roll another 1d6 and add the results together. The total is your Initiative on the next round.
Other Actions
If you take any other action during your turn, or end your turn without taking an action, roll your Size-based Initiative die. The total is your Initiative on the next round.
Other Actions
If you take more than one of the above actions on your turn, use the highest result rolled as your initiative and ignore the rest.
The first is Tides of Battle - At the end of each Combat Round, any character that did not receive damage may make a Tides of Battle Roll. In game this is a d10 (it isn't a d20 system), in a d20 system I would use a d4 or d6. After Rolling they may choose to add that roll to their initiative, or subtract it from the initiative of a character they dealt damage to.
The other common method of altering initiative is by spending a Void Point. These are a pool of points you may spend each day to fuel abilities or alter rolls slightly (like action points in other systems). After initiative is rolled, or at the end of any round, you may spend a Void Point to swap initiative with any willing participant.