It has shell smash, a stab that's SE on steel and a second stab SE on some of the game's prominent fire resists like charizard, dragonite, talonflame and earth power for heatran, and megas are fairly liberal with power boosting abilities.

Maybe take points out of defense and make it fast (after a shell smash I mean) and strong and that seems doable.

It needs a normal evolution first, then a mega. Then the mega needs to have Solid Rock, Then Solid Rock needs to halve incoming SE damage rather than cut off a quarter of incoming SE damage for it to be UU at best.

>>25043820
>rock/fire typing
HAHAHAHAHA

>GF continues to make slow bulky rock types
WHEN WILL THEY LEARN
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Mega Magcargo
Fire/Rock
Ability: Unshatter
The user is unaffected by moves that would deal damage equal to 100 or greater.
e.g. immune to Aqua Jet, STAB Thunderbolt, Blizzard, etc.

HP 50
Atk 50 --> 135 (+85)
Def 120 --> 80 (-40)
SAtk 80 --> 135 (+55)
SDef 80
Spe 30

How's that?

>>25044010
Maybe make Unshatter cap out at 120 so STAB Base 80 can still hit it. Hard to tell where the line between broken as shit and still useless is.

Magcargo is so awful I'd think it would need an evo first.

Magcargo Evo:

Obsidagot
Ability: Magma Armor/Flame Body/Solid Rock
Fire/Rock
BST: 525
HP: 50 -> 80 (+30)
ATK: 50 -> 65 (+15)
DEF: 120 -> 140 (+20)
SP.ATK: 80 -> 105 (+25)
SP.DEF: 80 -> 95 (+15)
Spd: 30 -> 40 (+10)

Mega Obsidagot
Ability: Arena Trap
Fire/Rock
BST: 625
HP: 80 -> 80
ATK: 65 -> 65
DEF: 140 -> 150 (+10)
SP.ATK: 105 -> 145 (+35)
SP.DEF: 95 -> 110 (+15)
Spd: 40 -> 80 (+40)
What do you guys think?

>>25043820
Everyone's forgetting it's type can be changed.

>>25045393
Yeah, a type change would probably be the only way Mega Magcargo could be decent.

>>25043820
Change type to Fire/Steel, raise speed to at least 80ish, and you already have a half-decent Shell Smash sweeper

>>25043996
It works for rhyperior.

Even if you take away points from attack and speed and put them in defense and special defense, on top of putting all extra 100 into defense and special defense, it would still suck.

If they pull off some radical bullshit, anything can get a good mega. Just look at Beedrill.

>>25044010
>literally immune to 3/4 of moves
Yeah totally balanced familiar.