This is a change that makes sense in terms of flavor, since Saruman and Saurons armies contain both Goblins and Orcs
Let me know in the comments, and feel free to suggest the next keyword we should look at through this lens
Dreamtail Heron is not just one of those kinds of creatures, but additionally, when it mutates, you get to draw a card
Especially with Dragons Rage Channeler and also Ledger Shredder, Mishras Bauble still performs and synergizes very well with mentioned cards, being able to manipulate the library, making up for better draws, helping with Delirium and fueling the graveyard for earlier Murktide Regents
The ability "may only be blocked by black or artifact creatures" was recast as the keyword Fear in 8th Edition which was replaced by Intimidate with the release of Zendikar
The spell you reveal from the first resolving cascade trigger will go on the stack above the other cascade triggers, finish resolving, and move on to the next cascade trigger