Any abilities that trigger when a creature with a certain power or toughness enters the battlefield will see the token enter as a 4/4 creature
to your highest-cost Enel character
What I especially like about Rampaging Yao Guai is its Enter The Battlefield ability, which triggers as soon as he's played - it destroys any number of target artifacts and/or enchantments with total mana value X or less
P/T Number 329 Language English Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Rulings (6/6/2025) If the target creature is an illegal target as Hydaelyn, the Mothercrystal's last ability tries to resolve, it won't resolve and none of its effects will happen
Argentum Armor
Hall of Generosity foils are Volraths Stronghold/Academy Ruins for enchantments, so the long term prospects are very strong given likelihood of the effect on a land remaining unique for a long time