But first, let's get them onto the battlefield
As people spent years talking more fluently about the game and the pool of cards became larger and less unique, regular, average bear eventually became shorthand for any regular, average creature, regardless of actual type, color, abilities, or eventually even the specific statline

OR ~ Anywhoos - for reference, here's the run down of all the IDW issues along with their promo card - IDW Comics Magic: the Gathering Volume 1 Issue #1 (2/1/12) Alternate-Art Treasure Hunt Issue #2 (2/29/12) Alternate-Art Faithless Looting Issue #3 (3/28/12) Alternate-Art Feast of Blood Issue #4 (5/23/12) Alternate-Art Electrolyze IDW Comics Magic: the Gathering Volume 2 - "The Spell Thief" The Spell Thief #1 (6/27/12) Alternate-Art Arrest The Spell Thief #2 (8/8/12) Alternate-Art Consume Spirit The Spell Thief #3 (9/19/12) Alternate-Art Standstill The Spell Thief #4 (11/7/12) Alternate-Art Breath of Malfegor IDW Comics Magic: the Gathering Volume 3 - "Path of Vengeance" Path of Vengeance #1 (12/5/12) Alternate-Art Turnabout Path of Vengeance #2 (12/19/12) Alternate-Art Voidmage Husher Path of Vengeance #3 (1/30/13) Alternate-Art Ogre Arsonist Path of Vengeance #4 (2/27/13) Alternate-Art Corrupt IDW Comics Magic: the Gathering Volume 4 - "Theros" Theros #1 (10/21/13) Alternate-Art High Tide (?) Theros #2 (11/13/13) Alternate-Art Gaze of Granite (?) Theros #3 (?) Alternate-Art

There are way too many 28, 29, and even 30 individual-characters card names in this game to even list them
While the first creature printed with the Dinosaur type was Pygmy Allosaurus from Ice Age , the type was removed in 2007 only then to triumphantly return with a (big) bang in Ixalan block and then was further bolstered in 2023s The Lost Caverns of Ixalan