To get the ball rolling, The Third Doctor also makes a Clue, Food, or Treasure token when he comes into play, automatically making him a 3/3 when you play it
I sympathize with you on feeling like we must hoard everything, a dragon sitting atop a mountain of gold, reluctant to let go of even a coin, for it is ours and it is precious
Many cards, such as artifacts and creatures, can tap for mana just as a land can
It hits anything, but Shuffle and shuffle and shuffle we go, what you get, nobody knows
Blue obviously gets card draw, but these are the three colors that most care about lands, which can be huge
You won't draw two cards, because that effect is part of a reflexive triggered ability that triggers only if the target opponent gains control of Yes Man