Intervention is definitely a solid Limited card and playable in token-abusing Commander decks. Many Trostani, Selesnya's Voice and Rhys the Redeemed builds have found a place in their token builds for Fated Intervention. The Scry is a nice little bonus, but most of the time it's played on an opponent's turn, where it's a bit more valuable. Having two guys to block with is definitely relevant, as well. When Advent of the Wurm rotated out of Standard, it's been a Commander-only card, as the 5-drop slots in Standard have consistently been filled with more impactful cards. Sadly, he deck this card would most be at home in, Centaur Tribal, has never taken off, despite the support the creature type received during Theros block. But when it was played in Theros/Born of the Gods/Journey Into Nyx Limited, it was plenty good.