I've been playing variants of this deck for a few months now - great deck. Made a couple additions that I'd recommend to others, (may break legality in certain formats): - Doubling season (many planeswalkers can activity their 3rd ability immediately with this in play) - Avoid fate (prevents some planeswalker hate / removal) - Increased elspeth count (for obvious reasons with doubling season)
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First off... if no one sees the huge combo coming, who wants to skip a turn in multiplayer FFA? You may get away with it just because of that... But the logical choice if you are worried about that is to reverse the play order... just play pithing needle first (it's 1 cost artifact anyway). You'll get some odd looks when you name a card that hasn't been played yet, but would still work. I think this deck is more worried about counterspells at that point than the activated ability of vapors...
I've tried this deck out compared to the deck you put it up against (RGW Planeswalkers) - unfortunately it loses about 90% of the time, mostly due to the cheap instants (Path to Exile, Naya Charm, etc) that the other deck has which can shut down the mana generators in this deck. The spells you have are very powerful but take a while to get going. Perhaps some quicker creatures and instants would improve the odds a bit.
This is basically the deck that was waiting to be created when Rel Rats was made. It needs some protection against the slew of cards that can destroy it (darn you meddling mage!). Most sideboards would have something that could dominate games 2 and 3 in a 3 game tourny... perhaps a couple underground sea's and sunken ruins swapped out, and a few counters in the side board in case...
With tinker, candeleabra and the dual lands, this deck is intended to get lots of artifacts in play and generate mana to tinker exchange / pay for Collosus. Izzet and Dimir power inf mana if needed. This deck is vulnerable to artifact hate, but can still accomplish a lot in one turn with the right draw. A couple of mana drains might be a good addition to have some protection... However, regardless of format, most casual still follows vintage restricted rules. Tinker and Tol Academy probably shouldn't have a set of each... aside from that, interesting deck!