They have a move cost as well the move cost indicates how much it would cost for you to move a character to a location
I think you have to have enough draw to warrant this seeing play in a typical Eldrazi deck, but if you're going hard into the blue/control shell it's a nice way to get to your fatties faster
1 Nemata, Primeval Warden
Clan Defiance It may not look sexy, but Clan Defiance is the best X damage spell in Gruul, and better than most Red options with its ability to shoot down two creatures as well as Blaze an opponent
Not only does it result in more plant tokens, but the army you make becomes far more formidable once you trigger landfall three or four times in a single turn
For most formats, there's not much public information available on the individuals who make these decisions, but we do know that MTG's Play Design team has some say in what cards are banned