Akatsuki Hideout? Indoors or out? Deidara takes this mostly though
Outside, why does deidara win ?
Without the burden of having to protect his village and in a location suitable for breaking down minerals into sand Gaara should win with medium difficulty. C3 isn't a factor, and neither is C4 against Gaara's suspension flight and suna sensing. Sand dome shields Gaara from C1 and C2 with ease. Full intel just guarantees that Gaara won't attack Deidara with gourd sand; he'll just close him down with a giant sand dome and crush him.
What? Sand dome spells the end for Gaara.
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Sand suspension flight and sand sensing, like I already said in my post....
How is he going to do that when he's already encased in sand dome? He can't fly around in a sphere of sand. Deidara's already exploited this he'll do it again. C2 forces him into his defense then Deidara blitzes and places the C4. Or sends a clone as a diversion and places it.
Sensing won't help him the bombs would already be completely around him. If he ever gets in that bubble he's dead no question about it.
His sand defense is automatic and will envelop him everytime a bomb gets close. C4's size and AoE is considerable, so the sand particles spread out all around the air would let Gaara feel the nanobombs and their chakra immediately... Actually the intel is full here so all Gaara has to do is fly at Deidara's altitude to get out of its range since Deidara also has to fly out of its range when he uses it.
How will he send a clone as a diversion? That entails creating another bird which means Deidara will run out of clay a lot quicker. Anyways Gaara can effectively coordinate his offense and defense simultaneously so if that suicide clone isn't doing anything to distract Gaara from the real Deidara.
Full intel is Gaaras favor then but not for those reasons.
Bro do you realize what i'm saying? How the C4 was shaped rounded imagine that over the dome that Gaara uses to defend himself...Even if he did sense it he'd already be trapped inside with the bombs like Sasuke was
...Deidara needs to get close to Gaara to utilize C4 in that manner, and Gaara can just easily fly away. If he's in a sand dome his sensor sand will notice Deidara flying towards him, meaning that he'll retaliate by attacking or flying away before Deidara gets close to him.
First of all its long been established that not all his sand can sensor and if it can its through touch alone. Second he can't fly in the dome....
So yes Deidara can blitz and cover that defense with his own C4