Is a four-tier attribute, skill, feat, and magic system good for an RPG?

The Characteristic Tiers are as follows: Attributes, Skills, Feats, Magic

Attributes

These consist of Strength, Vitality, Dexterity, and Intelligence

Skills

These are particular roll modifiers added to Attributes to determine your total roll modifier. All skill checks are done by rolling 2d6 and then adding the total roll modifier against a base difficulty of 11 (plus any difficulty modifiers).

Feats

These are abilities which may be passive or activated, which modify your character's combat or social skills further. One example of an activated Feat might be "Spin Cut" which will cost 2MP, and issues a melee attack against all adjacent squares.

Magic

As the fourth characteristic tier, Magic abilities add flavor and depth to the game. They are carefully balanced to be "worth it" to some players without breaking the game. With Magic, you could set fire to your opponent's clothes, fly like a bird, teleport, or even freeze hell itself.

What do you think of this basic design concept?

Is a four-tier attribute, skill, feat, and magic system good for an RPG?
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