When Shadowmoor was the most recent set, one of
the first decks I made with its cards was a
variation on its five-color control decks which
used only planeswalkers as its endgame. If this
card had been in Shadowmoor, I might have been
tempted to take that deck to a tournament
instead of just using it around the house. We've
pretty much all seen by now how even one
planeswalker can take over a game, and we've
pretty much all struggled to come back when
somebody manages to get two of them in play at
once. (For example, that old deck I mentioned
used to like having Jace Beleren and Liliana
Vess in play at the same time, so that her +1
could make his +2 asymmetrical.) This card
encourages you to figure out what exactly is
your favorite combination to try and engineer,
and I suspect the results will be quite a sight
to see.
It’s Collected Company, except for planeswalkers.
And worse.
Deploy the Gatewatch is cool in concept: put two
planeswalkers into play out of your top 7. The
problem here comes in that planeswalkers are
invariably expensive spells, there's a chance of
hitting multiple planeswalkers with the same
subtype (which only lets you choose one), and
building a deck that guarantees you'll have hits
indeed stacks the deck full of expensive spells
that clog up your hand until you get to 6 mana.
The ability is impressive, but the execution is
less impressive. I say pass, unless you want to
go over the top.