Rulings
Q1: Can I use this card's On Play effect to suspend either my Digimon or my opponent's Digimon?
Yes, you can suspend either player's Digimon.
Data Sources
EN
Official English Card Listworld.digimoncard.com
Lv.3 Agumon EX8-038 C Rookie | Virus | Reptile [Digivolve] [Koromon]: Cost 0 [On Play] You may suspend 1 Digimon. --- Inherited: <Retaliation> (When only this Digimon is deleted in battle, delete the Digimon it battled.)
A
Official English (Asia) Card Listen.digimoncard.com
Lv.3 Agumon EX8-038 C Rookie | Virus | Reptile [Digivolve] [Koromon]: Cost 0 [On Play] You may suspend 1 Digimon. --- Inherited: <Retaliation> (When only this Digimon is deleted in battle, delete the Digimon it battled.)
W
DCG Wikidigimoncardgame.fandom.com
Lv.3 Agumon EX8-038 C Rookie | Virus | Reptile [Digivolve] [Koromon]: Cost 0 [On Play] You may suspend 1 Digimon. --- Inherited: <Retaliation>.
JP
Official Japanese Card Listdigimoncard.com
Lv.3 アグモン EX8-038 C 成長期 | ウィルス種 | 爬虫類型 「コロモン」:コスト0 【登場時】デジモン1体をレストできる。 --- Inherited: ≪道連れ≫（バトルでこのデジモンだけが消滅したとき、バトルした相手のデジモンを消滅させる）