It's very good in Limited
There are six different rarities in the Disney Lorcana TCG in total
Sacrifice Bighorner Rancher: You gain life equal to the greatest toughness among other creatures you control
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March of the Machine also gave us the Multiverse Legends sheet, which contained xxx/500 versions of assorted legendary creatures in a frame that reflected their home plane
When you want to use this as a boardwipe, it will also wipe out your own creatures (unless Inspirit, Flagship Vessel is fully crewed), and for that, there are better options
