Well, one thing i might be in doubt about, is that when you raise the earth, don't you logically raise the mud with you? So wouldn't you still trip or something? But i guess that wouldn't matter since you escaped Antlion.
Anyways as the plateau rises, i use.
(Doton: Yomi Numa) - Earth Style: Swamp of the Underworld
Rank: A
Type: Supplementary
Range: Short/Long
Chakra Cost: 30
Damage Points: N/A
Description: This technique creates a swamp beneath the target (relative to them) that immobilizes them. If the swamp is made deep enough it will kill the target. The size of the swamp is proportioned to the amount of chakra of the user.
To create a 10x10 meter swamp beneath you, as you throw your flashbombs, i quickly turn around, and uses.
(Katon: Keshi Makuga Hara) - Fire Release: Exploding Flame Crater
Rank: A
Type: Offense
Range: Long
Chakra Cost: 30
Damage Points: 60
Description: The user first stomps on the ground, making an underground tunnel form between themselves and the opponent. They then breathe out fire into the tunnel, causing the fire to turn into lava as it travels. With a single hand seal, the lava will erupt from the ground underneath the opponent, engulfing them in lava.
To make the swamp erupt like a vulcano.
BTW, why do you have clones? my mud river would've started to form before you made the clones, and you said you made the rampart, so the clones wouldn't have happened.
BTW again, even if your clone is traveling through the ground, he would be met by fire.