The Grey Witch (with a hint of lemon)

Scarlet Witch isn't your typical hero as her signature spells are so powerful that she warps the whole game around them.

I've not built this deck for Scarlet Witch to support an aspect, as far as I'm concerned Scarlet Witch's chaos magic IS the aspect and I'm just putting in as many ways of supporting playing those cards as possible. With no inbuilt economy cards Scarlet Witch's main drawback is her low tempo (to cast a Hex Bolt and a Molecular Decay on one turn needs 7 cards) so I've gone big on the basic cards to support her in playing more of her best cards more often.

• See more Hex Bolts: Assess The Situation, Spiritual Meditation, Avengers Mansion, Sorceror Supreme, Skilled Investigator
• Play more Molecular Decays: Helicarrier, Quincarrier, Power in All of Us (to play something as well as Moleculat Decay that turn).
• Drop bombs with Chaos Magic: Heimdall, Nick Fury, Lockjaw

There's a tiny splash from Justice for four cards that will sit out of the way and help slightly rather than make a big impact. You could splash in 4 cards from any aspect but at these are all permanents and answer probably the main missing piece in Witch's arsenal (reliable Thwart) while also supporting drawing more cards it seems the best fit.