[Buff] Slime Traveller

Speed Summon basically turns Slime Traveler into a location. It becomes a Plains that you can play over and over again as long as you can keep it alive. If we were going to basically make it a location/monster, I'd want to remove the repeatability of the ability and have it just be a 1-shot deal.

With that said, I'd rather Slime Traveler be a means of insurance against locations rather than an instant counter to them (the current form). Locations are already an instant counter to locations themselves. Plus the current form means there is in fact a purpose to actually running Plains in your deck (granted until the meta-game encourages more liberal use of locations, no one will do that because of how often it'll be a completely dead card).