So, as with any other commander, if you want it to be efficient you're gonna need 4 things: Synergistic win conditions, card draw, mana ramp & tutors
If your opponents run out of other removal options or youre super low on LP and can get some good hits in this might not be the worst pick, but if you can get good hits in youre probably in a better spot to just win with Number 100 Number 38: Hope Harbinger Dragon Titanic Galaxy: Another possible pick for Draglubion, his lockdown on enemy Spell cards is insanely effective and makes him a great choice if you cant get the OTK or see your opponent has some reliance on Spell cards
One of the best Metal decks in the game was the Dialga Ex and Arceus Ex deck that ran around in Triumphant Light, and shortly thereafter, but it's mostly a relic of the past now
An important note is to keep your cards out of areas that vary in temperature greatly and avoid leaving them in the sun
With its unique artwork and rare 1st Edition marking, it's sure to catch the eye