First, you get a 6/6 flying for six mana, but then every enchantment played or Room fully unlocked results in a creature being stunned permanently (or at least until Fear of Sleep Paralysis leaves)
Monstrous Rage sticks out like a sore thumb as a combat trick that is just too good and has powered up every aggressive deck in Standard ever since it came out
After this, he is acquired as a summon
Each creature with one or more counters on it can't attack you or planeswalkers you control unless its controller pays , where X is the number of counters on that creature
Competitive play is a huge part of any TCG, and if a dud of a set were to release right as the biggest event in the game was due to take place for the first time, we could be talking about a very different trajectory for the game
The abilities of a creature can be determined by its rule text or the effect that brought it onto the battlefield in MTG