Once the player has ample Treasure, they can spend all that mana on huge finishing plays, with powerful X spells like Torment of Hailfire, Shatterskull Smashing, Crackle With Power, and Finale or Promise to devastate the board.
Plus, if you can get something onto the battlefield, their battlefield is often lacking any real threats until the midgame, letting you go on the offensive uncontested
Instead, a creature is given the designation of Ring-bearer. The creature chosen to be the Ring-bearer remains the Ring-bearer until you either choose another one, it leaves the battlefield, or leaves your control
While a 3 mana 5/5 flier is juicy it is a big old risk to give your opponent a Howling Mine
James: Draw a card and attack your opponents Pokmon with yours
They do