Rulings
Q1: Does this card's On Play When Digivolving effect prevent deletion in battles against Security Digimon?
Yes, it prevents deletion.
Data Sources
EN
Official English Card Listworld.digimoncard.com
Lv.4 ExVeemon BT16-018 C Champion | Free | Mythical Dragon [Digivolve] [Veemon]: Cost 2 <Raid> [On Play] [When Digivolving] 1 of your Digimon can't be deleted in battle until the end of your opponent's turn. --- Inherited: [Your Turn] This Digimon gets +2000 DP.
A
Official English (Asia) Card Listen.digimoncard.com
Lv.4 ExVeemon BT16-018 C Champion | Free | Mythical Dragon [Digivolve] [Veemon]: Cost 2 <Raid> [On Play] [When Digivolving] 1 of your Digimon can't be deleted in battle until the end of your opponent's turn. --- Inherited: [Your Turn] This Digimon gets +2000 DP.
W
DCG Wikidigimoncardgame.fandom.com
Lv.4 ExVeemon BT16-018 C Champion | Free | Mythical Dragon [Digivolve] [Veemon]: Cost 2 <Raid> [On Play] [When Digivolving] 1 of your Digimon can't be deleted in battle until the end of your opponent's turn. --- Inherited: [Your Turn] This Digimon gets +2000 DP.
JP
Official Japanese Card Listdigimoncard.com
Lv.4 エクスブイモン BT16-018 C 成熟期 | フリー | 幻竜型 「ブイモン」:コスト2 ≪突進≫ 【登場時】【進化時】相手のターン終了まで、自分のデジモン1体はバトルでは消滅しない。 --- Inherited: 【自分のターン】このデジモンをDP+2000。