So this is the deck I'm thinking of running Standard:
Land | 23Mountain x4
Plains x5
Island x8
Hallowed Fountain x2
Steam Vents x2
Sacred Foundry x1
Temple of Triumph x1
Creatures | 4Spellheart Chimera x4
Spells | 33Quicken x4
Dispel x1
Magma Jet x4
Azorius Charm x4
Boros Charm x2
Time Ebb x4
Uncovered Clues x3
Dissolve x2
Render Silent x2
Supreme Verdict x3
Sphinx's Revelation x2
Aurelia's Fury x1
Warleader's Helix x1
Obviously my biggest concerns are decks with a lot of removal and to a lesser extent
Dryad Militant (since my only real kill mec is Spellheart). Idea is to slow them down with Time Ebb and burns/wipes long enough to get out a decent sized Chimera (hopefully backed by a counterspell) and swing in, preferably with a Boros Charm for +1/+0 and Double Strike. Boros Charm can be used as a burn in a pinch or to make my Chimera's indestructible should they (or myself) want to board wipe/burn. Quicken + Time Ebb/Azorius Charm, especially early game, can really set them back while pushing me ahead, especially if they're hoping for land or better spells.
So far the deck handles really well outside of my concerns but I haven't fought any decks with a lot of removal yet so we'll see.
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I'm still messing with the sideboard but here are some options that are on the table:
SideboardRevoke Existence x4 (For anyone running bestow/gods/heavy enchants)
Dispel x4 (For fighting other control/blue decks and/or heavy instant decks, like Heroic)
Boros Charm x1
Homing Lightning x1-2
Dissolve x1-2
Immortal Servitude x1-2 (for decks running a lot of removal, 6 mana and I get back all my Chimera's (7 mana as an instant on their turn with Quicken).
Warleader's Helix x1-2
Aurelia's Fury x1
Skullcrack x3 (Life gain heavy decks)
Supreme Verdict x1 (A fourth might be overkill and be hard to have mana for)
Peak Eruption x3-4 (For
Chained to the Rocks,
Awaken The Ancient or just to be a dick to Mono/Heavy Red players.)
Gainsay x3-4 (Another strong anti-Blue card but I think Dispel will suffice outside of the mono blue devotion decks that will be floating around.)
Actually, this is giving me some good ideas for what my sideboard would be.
These are some creatures I was contemplating trading for some of the spells.
Frostburn WeirdJudge's FamiliarTajic, Blade of the LegionDaxos of MeletisPyromancer's Apprentice