A description of the three player psychographics can be found here, but, basically, Spike likes to win, and he likes to win in a way that shows he can out-think his opponent. Cards with a converted mana cost of seven or greater, though, are most often considered unplayable in constructed environments without reanimation shenanigans. There are, of course, exceptions, like Karn Liberated and Cruel Ultimatum. Design one of those exceptions.

Made Resurrection Angel, Overwhelming Darkness, Burst of Inspiration, Awaken the Wild, Molten Charger, and Reassembling Dragon.

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Added Master of His Domain and Fountain Geyser. Arguments about Spike's needs and desires are often tricky. Possibly because I like to humanize Spike, while many people prefer to vilify him.

­:) And I like your attempts at a spike-friendly card.

FWIW, I think the key things for a spike card are:

• Efficient
• Flexible
• Incremental advantage (card advantage in the sense of "if they hit this with doomblade, am I still ahead")
• Interesting decisions, where

Not that it can usually have ALL of those, but 2-3 out of 4 is good. But I'm not very good at designing or judging spike cards :)

I went for Librarian of C'tl, which I'm not terribly proud of.

Looking at some decklists from tournaments, 7+ cost cards seem to generally be:

• Reanimation or ramp targets (eg. Emraekul costs FIFTEEN, but is still playable, indeed, bannable, in the right deck!)
• 7/8/9 cost cards that have a sufficiently "win the game" effect
• Combo stuff, such as progenitus being pitched to blazing shoal :)

It feels to me like a reanimation target doesn't really count - what's the point in a mana cost if Spike just bypasses it entirely? But a ramp target does count. In a sense it doesn't matter very much what the giant fatty to ramp to is, and they tend to be fairly Timmy cards. So making a ramp target that's specifically Spikey, rather than just a random Timmy card that Spike happens to use at the top end of his ramp deck, is a fun challenge.

I guess Sphinx of Uthuun would probably count, what with Fact or Fiction being one of the most iconically Spike cards ever.

(Hm, is Iona, Shield of Emeria a Spike card or a Griefer Timmy one?)

I feel like reanimation targets are a cheap way to solve this, which is why I specifically listed Karn Liberated and Cruel Ultimatum as examples. Big creatures aren't off limits, though!

I made Void of Awakening and Aeonian Gates.

I made Meager Minds of Mortals.

Added Maddening Hellion. Pretended it was Uncommon material.
Oh, also, Foolproof Strategum. Though, admittedly, that card's probably as Timmy as it is Spike.

So tempted to say Bronze Horse. Wonderful comments there ;)

I made Archangel of Light.

New submission: Niv-Mizzet, Planeswalker.

­Sarkhan Unleashed

­Sphinx of Broken Dreams.

­Nuclear Elemental