2 official rulings from Bandai, last ruled Sep 13, 2024. Straight answers to how this card actually resolves.

I used this card's <On Deletion> effect to place a [EX3-069]/[Trial of the Four Great Dragons] from my hand in the battle area. Does [EX3-069]/[Trial of the Four Great Dragons]'s <Main Timing> <Draw 1>. Then, place this card in your battle area." effect activate? (2022/07/22)
No, it doesn’t activate. This card's <On Deletion> effect only places a [Trial of the Four Great Dragons] from your hand in the battle area when you don't already have a [Trial of the Four Great Dragons] placed.
Ruled Mar 28, 2024
What does this card's (Rule) mean, exactly? (*This card's "The name of this card/Digimon is also treated as [ChaosGallantmon]" has been changed to "(Rule) Name: Also treated as [ChaosGallantmon].")
This is a special rule for this card that always treats it as if it also has the [ChaosGallantmon] name.
Ruled Sep 13, 2024
Got a line that uses Megidramon? Map it in the builder and share it with a link.
Questions and answers are Bandai's official rulings, collected and translated by the DigimonCardGame Wiki community and reused here under CC BY-SA. Card names and card text are © their respective publishers; Combalo is not affiliated with Bandai.