Changes

* As soon as the Damage Step is entered, immediately apply the [[Continuous Effect]]s of any monsters that apply "''during the Damage Step (only)''", such as those of "[[Steamroid]]" and "[[Crystal Beast Topaz Tiger]]".

* Next, the Trigger Effects of monsters that activate "''at the start of the Damage Step''" activate now (if triggered appropriately), such as those of "[[Neo-Spacian Grand Mole]]" and the "[[Mystic Swordsman]]" monsters. ** The effects of cards like such as "[[Nanobreaker]]" and "[[Disciple of the Forbidden Spell]]" that state "''without (applying) damage calculation''" also activate at this point.* Note However, other cards that the monster has not been flipped face-up at this point:** If the effect requires the opponentstate "''without (applying) damage calculation''s monster be face-up" may instead activate later, either directly or indirectly "''before damage calculation''" instead (such as seen in the [[Card Errata:Drillroid|errata history]] of "[[Ally of Justice CatastorDrillroid]]") then . As such, it will not activate is important to destroy check if there is a facenewer version of that card's text on the [http://www.db.yugioh-down monstercard.com/yugiohdb/?request_locale=en Yu-Gi-Oh! TCG - Card Database] that clarifies the activation timing.** If a face-down battling monster is destroyed nowthere isn't, you do not activate ''[[Flip Effects]]) and you do not perform [[damage calculationTCG]]'' rulings may explain the activation timing, if there were any issued for that card.

* If a face-down monster was attacked, it does not flip face-up at this point.<ref>{{cite book |last=Konami |title=Hidden Arsenal – Card Rulings (Version 1.0) |url=http://www.yugioh-card.com/en/gameplay/rulings/100325DPTin_%20HA_SDWS_ST09_Rules.pdf |at=Ally of Justice Catastor}}</ref><ref>{{cite book |last=Konami |title=Raging Battle – Card Rulings (version 1.2) |url=http://www.yugioh-card.com/en/gameplay/rulings/RGBT%20Rules%20v1-2.pdf |at=Exploder Dragonwing}}</ref>** For example, the effects of "[[Sasuke Samurai]]" and "[[Reverse Buster]]" activate "''at the start of the Damage Step''," and require the attacked face-down monster to remain face-down by the time their effects resolve, supporting this point.** If a face-down battling monster is destroyed now, [[Flip effect]]s are not activated, and [[damage calculation]] is not performed.<ref>{{cite web |url=http://entertainment.upperdeck.com/yugioh/en/gameplay/faqs/cardfaqs/default.aspx?first=A&last=C |title=Individual Card Rulings [S-T&#93; |publisher=UDE |at=Sasuke Samurai |accessdate=20 August 2015 |archiveurl=http://web.archive.org/web/20090226221425/http://entertainment.upperdeck.com/yugioh/en/gameplay/faqs/cardfaqs/default.aspx?first=S&last=T |archivedate=26 February 2009}}</ref> Effects that increase, decrease, halve, or double the ATK and/or DEF, such as "[[Shrink]]" or "[[Rush Recklessly]]", may can still be activated from this point onwards.