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You can get as many additional basic lands as you want from the store

Tezzeret has ditched his black and blue colours and has gone completely colourless, with abilities just about any deck would want

Lyle does have a high ink cost of 8 but grants 3 Lore points when questing and has stats of 6 Strength and 4 Willpower, so he's a very valuable card

Armor Exe X LIGHT Level 4 [ RockEffect ] ATK 2400 DEF 1400 This card cannot attack in the same turn it is Normal Summoned, Flip Summoned, or Special Summoned

If your opponent knows that you're running Question, then they can theoretically cheat by checking your Graveyard at any point before you actually play the card, which is something that they're normally allowed to ask at any time

Whenever Omnath or another Elemental you control dies, Omnath deals 3 damage to any target