sugarrushx6:
(Deck = Spellbook)
Drawing
You rip a page out of your spellbook.
"How about duplicates?"
You copy the spell again and again!
"What about lands, those are pretty basic? Why write it down in"
That defeats the purpose of the spellbook, so you don't have to remember all that nasty junk.
"Why not just search through the spellbook? You have it in your hand."
Game rules don't allow it.
M:TG player-characters (we used to call them 'Planeswalkers' but that means something slightly different now) don't use DnD spellbooks. They just stuff all their spell patterns (composed of 'threads' of magical energy) into an extradimensional matrix. (Each Planeswalker has one of these and it's part of what makes them speical.)
Unfortunately, these extradimensional matrices are extraordinarily difficult to keep organized, so it's kind of pot-luck what you manage to pull out. Lands are a bit different (but get stored in your matrix as well), as they represent the various planes you've visited and established a mystical connection to. These connections provide the energy needed to weave those spell threads into a summoning spell or fireball or a cool chalice that lets you take a peek at your opponent's matrix.
sugarrushx6:
Turns
Each spell requires 30 minutes. Other wizard must wait 30 minutes for other wizard to do his spell, without interruption.
"I don't see the point of this, 30 minutes is plenty of time to cast your spell too."
Game rules don't allow it.
"Why not draw a gun, a sword, or any other weapon, and just walk over and kill the guy instantly?"
Game rules don't allow it.
"Is there not an instant-kill spell? An Avada Kedavra?"
There is not a "card" that exists like that.
Logic.
Spells don't require 30 minutes to cast. It might take that long to play out, but a six-second round of DnD or 1 second of GURPS might take an hour to play out sometimes. It's just a disparity in the temporal continuities of the planes that prevents us from viewing their actions in "real" time.
Some spells are slower to cast than others (non-instants vs. instants), but the main things that require you to wait on the other 'player' are waiting for your mana connections (land) to recharge and waiting to see what his reaction to your spells and attacks are so that you can interfere with them.
Traveling from plane to plane and in between doesn't allow you to carry around guns and swords - and a gun or sword would largely be like carrying around a banana for a powerful entity of that sort anyway. It would be like Godzilla carrying a flyswatter. Not only is it not nearly as effective as your spells, all the other casters would make fun of you and you'd lose prestige and never win that M:TG Badass PC of the Year Award that is so coveted.
In addition, the creatures you summon often have such weapons and they don't instantly kill your opponent. Why? Because when you hit him, you're not hitting HIM, you're hitting the mystical barriers that protect him. You start off with 20 such barriers (each one capable of absorbing a blow that would slay a normal man). 20 seems to be the optimum number of barriers to maintain while traveling in order to provide significant protection yet still allow easy passage through inter-dimensional Customs without suffering from a full body-cavity search.
sugarrushx6:
Tapping Land
Tapping a land card in my weird imagination of mine is like taking all the life force of the land.
"I shall take all the life force of the Amazon rainforest!"
(concept of turns means that other wizards has to wait 30 minutes for wizard to complete his massacre)
"I summon... LLANOWAR ELVES!"
Tapping a land does not take all the life force of that plane, or else you wouldn't be able to draw upon it again next turn. Tapping a land just draws on a tiny portion of that planes power, however it is still such a huge amount of energy that your connection to that plane requires a few moments to recover before you can use it again. Even lands that you sacrifice to use don't draw out all the energy of the plane, it just severs your connection to that plane temporarily and stores that connection in the 'graveyard' (the other, more difficult to access storage matrix that M:TGers have... it's where 'used' patterns go until you have a chance to recycle them back into your 'library' matrix since it's a bit more tricky to stuff patterns back into there).
sugarrushx6:
Creatures
Attacking:
(one weak sword swing later) I'm... (breath) all tapped out, I can... (breathe) do no more.
Summoning:
"Why can't you attack right away?"
(gasp) Summoning me... (breathe) took all of my... (breathe) energy... I'm just go lie here in wait...
Attacking creatures don't necessarily represent a single swing of their sword. It might represent a charge, or flurry of swift blows or claw/claw/bite or whatever. It depends on the creature. I'm sure that for some of them (giant stone colossi, for instance) it represents one big, slow attack.
See? You can rationalize any game mechanic if you try hard enough...