Editing Final Fantasy X (section)

===Combat===
[[File:FFXbattleexample.png|thumb|left|A [[boss (video games)|boss]] battle screen showing a [[HUD (video gaming)|heads-up display]] to illustrate battle information]]

''Final Fantasy X'' introduces the Conditional Turn-Based Battle (CTB) system in place of the series' traditional Active Time Battle (ATB) system first used in ''[[Final Fantasy IV]]''. Whereas the ATB concept features real-time elements, the CTB system is a turn-based format that pauses the battle during each of the player's turns. Thus, the CTB design allows the player to select an action without time pressure.<ref name="GSpy" /> A graphical timeline along the upper-right side of the screen details who will be receiving turns next, and how various actions taken will affect the subsequent order of turns. The ordering of turns can be affected by a number of spells, items, and abilities that inflict status effects upon the controlled characters or the enemies.<ref name=":1">{{Cite web|url=https://www.gamespot.com/articles/final-fantasy-x/1100-2798161/|title=Final Fantasy X|last=Vestal|first=Andrew|date=April 28, 2003|website=GameSpot|language=en-US|access-date=July 24, 2017|archive-url=https://web.archive.org/web/20190620130705/https://www.gamespot.com/articles/final-fantasy-x/1100-2798161/|archive-date=June 20, 2019|url-status=live}}</ref> The player can control up to three characters in battle, though a swapping system allows the player to replace them with a character outside the active party at any time. "[[Limit Break]]s", highly damaging special attacks, reappear in ''Final Fantasy X'' as "Overdrives". In this incarnation of the feature, most of the techniques are interactive, requiring button inputs to increase their effectiveness. While initially the Overdrives can be used when the character receives a significant amount of damage, the player is able to modify the requirements to unlock them.<ref>{{cite web |url=http://www.rpgamer.com/games/ff/ff10/reviews/ff10strev1.html |title=Final Fantasy X – Review |publisher=RPGamer |author=Tidwell, Mickel |access-date=April 6, 2012 |url-status=dead |archive-url=https://web.archive.org/web/20130621054222/http://www.rpgamer.com/games/ff/ff10/reviews/ff10strev1.html |archive-date=June 21, 2013}}</ref>

''Final Fantasy X'' overhauled the summoning system employed in previous games of the series. Whereas in previous titles a summoned creature would arrive, perform one action, and then depart, the "Aeons" in ''X'' arrive and replace the battle party, fighting in their place until either the aeon wins the battle, is defeated itself, or is dismissed by the player. Aeons have their own [[statistic (role-playing games)|statistics]], commands, special attacks, spells, and Overdrives. The player acquires five aeons over the course of the game through the completion of Cloister of Trials puzzles; three additional aeons can be obtained by completing various [[quest (gaming)|side-quests]].<ref name=":0" />