This card does not respect 711.4b and treats the converted mana cost of the back side of double-faced permanents as 0.

[vorpal-buildbot]

711.4b While a double-faced permanent’s back face is up, it has only the characteristics of its back face. However, its converted mana cost is calculated using the mana cost of its front face. If a permanent is copying the back face of a double-faced card (even if the card representing that copy is itself a double-faced card), the converted mana cost of that permanent is 0.

Affects: [Austere Command], [Culling Sun], [Consume the Meek]

Bug Blog Text: [Austere Command] does not respect 7114.b and treats the converted mana cost of the back side of double-faced permanents as 0.

[silasary]

I don't think the comp rules count up to 7114.b 😉

[stash86]

To make it complete

711.4b While a double-faced permanent’s back face is up, it has only the characteristics of its back face. However, its converted mana cost is calculated using the mana cost of its front face. If a permanent is copying the back face of a double-faced card (even if the card representing that copy is itself a double-faced card), the converted mana cost of that permanent is 0.

[PennyDreadfulBot]

Fixed according to datrobino in match 243489212.