I'll go with the bolder place if you're using Toph. Ame would just be your playground. ^^, love Toph btw!
Ragna somehow was sent to this randomn ass place that had randomn as boulders everywhere.
Ragna: Is this Iwa or the Twilight Zone???? Where did these boulders come from.
Ragna then read a sign that said Kaguya's droppings.
Ragna: That explains a lot.
Ragna viewed his target and met her face to face as he greeted her and then signaled that he had to kill her by flicking her off and lighting a cigar. He quickly performed the boar and tiger handseals creating a massive swamp but making sure it did not reach to his own safe area. The swamp was deep and snagged and pulled Toph in. In a hurry Ragna materialized a wind blade from his fingertips and aimed it at Tophs neck slicing it clean off.
Ragna: That was not pretty.
(Doton: Yomi Numa) - Earth Style: Swamp of the Underworld
Rank: A
Type: Supplementary
Range: Short/Long
Chakra Cost: 30
Damage Points: N/A
Description: The user will first perform Boar → Tiger and then by changing the surface of an object beneath an enemy into mud and creating a non flammable swamp, the user can sink his enemy into the mud. The adhesive, chakra-infused mud ensnares the enemy's body, making it almost impossible to recover one's strength and escape from the swamp. The size and depth of the created swamp depends on the user's skill and the amount of chakra used, but if the user is an expert in this technique, it will always be possible to make a fair-sized swamp which is extremely effective against a great number of enemies or when having to face gigantic creatures.
(Fūton: Kaze No Yaiba) - Wind Style: Wind Blade
Rank: A-Rank
Type: Offensive
Range: Short-Mid
Chakra Cost: 30
Damage Points: 60
Description: This technique is a pinpoint slashing strike, where the user emits chakra from their fingertips and materialises it into an near invisible weapon that assaults the enemy in a gust of wind. If the Sickle Weasel Technique can be regarded as a swarm of small wind kunai, then this technique is akin to a virtually unavoidable longsword which can leave the target's body mutilated. Just being in close proximity to the technique can cause minor cuts. The wind blades can be created and thrown, like projectiles, in rapid succession, although in this case, each one weaker than the single use application. The technique cannot be blocked by physical weapons and is insanely fast by not relying on the use of Hand seals but, because it still requires the user to perform hand gestures to use and is somewhat visible in the effect it produces, it can still be defended against by using appropriate evasion techniques or fast elemental ninjutsu.