From the comprehensive rules:
205.2a The card types are artifact, battle, conspiracy, creature, dungeon, enchantment, instant, land, phenomenon, plane, planeswalker, scheme, sorcery, tribal, and vanguard.
Of these, artifact, battle, creature, enchantment, land, and planeswalker will be in standard. It's exceedingly hard to sacrifice battles and planeswalkers, and enchantments are often difficult as well. Let's say you sacrifice an artifact, a land, and a creature (which seems reasonable), you're casting this for 2BRG. As a 5-drop, this card seems incredibly powerful, assuming the opponent doesn't have a [[Sheoldred, the Apocalypse]].
Is this better than ramping into Atraxa? Probably not, but it comes out much sooner and fits well in a sacrifice deck.
Hideout (not sure what they're called) lands from new capenna. You don't get them untapped but at least they still produce the mana that turn if you cast this.
Another commenter pointed out this is the commander set, so it's not playable in standard anyway. Shame, this could have been a fun standard card. In commander though, you'll have access to the full suite of fetch lands.
Oh right, I missed that. In commander it seems a lot more viable. Also, not sure how relevant it is, but you'd also have access to tribal permanents (for example with [[Altar of the Goyf]], which could be pretty thematic with this card).
