Well the activation cost is one if not the lowest one of all the uncommon lands. It is already 4 Mana for the token in that way. The sacrifice of an additional creature make this more situational. Maybe if you have some low value critters, Anointed Procession, Bishop of Wings, Rampage of the Valkyries out or you really need the life points with Righteous Valkyrie.
Send your sac fodder to Starnheim for a slightly better creature. This really could have benefited from not having that last line.
Source: GoHa.ru
GWUBRDraft my Old Border Nostalgia Cube! and/or The Little Pauper Cube That Could!RBUWG
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