Iron Crown ex has an ability, Cobalt Command, which allows any attacks used by Future Pokmon other than Iron Crown ex to do 20 more damage to their opponents
Since he can't quest for lore, this does seem mostly like a slightly worse Beast, Relentless, but there may be some clever tricks you can pull by giving Hook Resist
I mentioned Necro decks (mono black agro usually also has Necropotence but it is not the same archetype as a Necro deck) where it is a powerful control card and dominates other control decks and severely damages combo decks
Alongside Silent Hill, Ito has also done work on other games, like as the monster designer for Metal Gear Survive (arguably the only good thing about that game) and, oddly, an environment designer for World of Tanks
Destroy target creature with power 4 or greater