monitor_event FactionTurnEnd FactionType seleucid
and I_TurnNumber = 1
set_counter Romanii_Reform 1
set_counter AugustanReformsAdvisor 1
end_monitor
monitor_event FactionTurnEnd FactionType seleucid
and I_TurnNumber = 2
set_counter Romanii_Reform 2
end_monitor
monitor_event FactionTurnEnd FactionType seleucid
and I_TurnNumber = 3
set_counter Romanii_Reform 3
set_counter AugustanReformsAdvisor 1
end_monitor
this should work
Edit: fixed capital S problem
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