I've been doubled up on
Stromkirk Noble and
Monastery Swiftspear since my cube's creation. It works fantastic in my environ - the Noble grows well and plays in the +1/+1 counter theme, and with all the humans, he actually
does have relevant evasion in a fair number of matches, especially if he runs out early. I find that he grows faster than
Champion of the Parish while requiring a more aggressive build to do so, which is something I really like; it gives a real texture to
![Mana - Red {R} {R}](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
-based aggro as a distinctly more
aggressive form of aggro in my cube (as opposed to
![Mana - White {W} {W}](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
-based aggro, which is more of a hateful beast, and
![Mana - Green {G} {G}](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
-based aggro, which is very resilient early on and leans towards an early-midrange beatdown approach).
Monastery Swiftspear is a fantastic card to run in multiples because spells-matter is a lot of fun and it's easy to get value off of her. I will say that she's very format-dependent to be good; if you don't have a wealth of cheap
![Mana - Red {R} {R}](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
spells, she's going to do a lot less work. Flashback and retrace cards help push her even harder, and the ever-popular double
Magma Jet can keep the gas running in that deck. A 1/2 with haste is really not the best in the world, but the reality is she's often at least a 2/3 when she swings, if not bigger, if you've pushed your curve low enough. That extra point in toughness is what really makes the card; being able to block very profitably and turn a trade into a chump block at instant speed is not to be overlooked, and the intimidation factor of "do they have a spell to cast or not?" can help ensure she swings in unopposed, even on a bluff. The urge to bluff an instant or trick can also help newer players learn the value of playing cards in their second main phase, which is just a small thing that newer players tend to take a while to value. The haste is also spicy for a late-game zerg-in for the win; I've dropped
Monastery Swiftspear,
Reckless Charge,
Assault Strobe a few times now, and swinging in for 12 damage like that is pretty bonkers when your opponent is tapped out/just swung in themselves. I think she promotes a lot of very interesting decision-making, and she's a nice backbone piece to a Spells-Matter theme, pairing lovely with
Abbot of Keral Keep,
Young Pyromancer, and
Guttersnipe to really wreck face.
Re: White Walkers, I think
Gideon, Ally of Zendikar is a really powerful design and not really something I'm personally looking for.
Elspeth Tirel is in my opinion the fairest and most interesting white Planeswalker available, as she promotes token strategies but can also do quite well in straight-up control decks, provided they're built properly. Compare this to
Elspeth, Sun's Champion,
Gideon Jura, or
Elspeth, Knight-Errant, and you'll find that she's really one of the few planeswalkers that is both exciting to play and not necessarily a force that will win the game by herself, which is a rare quality as far as planeswalkers go and the only sort I really want to sleeve up anymore.