Set name - March of the Machine
(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When this Siege enters, search your library and/or graveyard for a non-Human creature card with mana value X or less and put it onto the battlefield. If you search your library this way, shuffle.

Reach
For each non-Human creature you control, you may have that creature assign its combat damage as though it weren't blocked.

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Phyrexia's largest goliaths stormed Ikoria, ready to challenge the world's great monsters. Zilortha was unimpressed.