Forgotten Ancient works best in decks that either cast a ton of spells, have +1/+1 counter strategies, or otherwise benefit from having massive stats
When faced with the choice between Kaervek's Torch and Ray of Command, Ray of Command would often be the correct first pick
Then, give 1000 power during this turn to up to 1 of your opponent's Characters with a DON
We have the top lists being played on MTGO, whats winning, and the decks that won the major events this last week
October 2022 Update: The printable is now updated to include new Pokemon card templates for item cards, supporter cards, and stadium cards (after much begging from my kids the last few weeks)
As a subcategory of this, there are some times where incidental milling can power up your other cards