Considering that you'll open one copy of Heliod, Sun-Crowned roughly every 3.5 booster boxes, this means that the supply of the Secret Lair version of Heliod, God of the Sun (again, based on our estimate) is roughly the equivalent of 175,000 booster boxes of Theros being opened (at $100 a box, about $17.5 million dollars worth of boxes)
The first copies, for free without needing any mana or other cost invested, your first instant, sorcery or artifact spell you cast each turn
As it stands, the effects of her counters are only in play when shes on the battlefield
Moria Marauders ability reads: Whenever a Goblin or Orc you control deals combat damage to a player, exile the top card of your library
If the copied creature is a token, the new token that's created copies the original characteristics of that token as stated by the effect that created that token
No-Regrets Egret just gives you a little bit more information when you're resolving mulligans