It would have been a great pull to get another higher-than-rare pull
The mana produced by Altar of the Lost can only be spent on a highly specific subset of cards (flashback cards), only in a very specific situation (if they are already in your graveyard), and the soonest youre getting this mana is Turn 4 without accelerating Altar out early
Such as cute, terrifying or elegant
If you , do have the devotion Bello makes it an enchantment creature elemental, and Xenagos is a creature resulting in an enchantment creature god elemental
For board game manufacturing, especially when dealing with overseas production, GSM is almost always preferred for accuracy and clarity
Either way, regenerating will tap Experiment One despite its summoning sickness