Please note that XLHQ versions of cards are only showed in the zoom view, regular card pictures are still used (LQ/HQ, depending on what you're using) on the battlefield and elsewhere in the game because XLHQ art is significantly more taxing in memory consumption (and in addition to that, XLHQ card borders are not cropped the way Forge expects them in order to show them properly on the battlefield anyway)
Id say you just need a card each turn for this card to be very good
But aggro runs a lower curve and doesnt need as many lands, so they can afford to cut down to as low as 33% since theyll usually never play anything that costs more than three or four mana
There are hundreds of written and video guides on Commander buildarounds, how to build a deck, but nobody offers any kind of EDH deck building service
Snapcaster Mage is not the most glorious win condition, but it does have power and toughness and a nonzero number of games will end with Snapcasters attacking for twenty
Even aside from the more general application of the cards I mentioned today, theres a bunch of great cards for more particular archetypes available too
