Logically, youd want to give it to a small creature, therefore your opponent cant block with a big one
When he doesn't give away his card, the reward for beating him is one of each of the four types of booster packs, which allows you to build up a decent card collection pretty quickly
We treat them as beautiful items, but there are cases in which they are in this condition even if they have minute scratches, minute scuffs, etc
Even if the Curtains die to a Lightning Bolt or Unholy Heat (rarely with delirium on Turn 2) after blocking the Monkey, they still blocked the Monkey before trading, when the typical auto-loss pattern is having your Turn 1 creature die to removal on the spot while your opponent gets a free Treasure and card flip
Deck building in Magic , beneath everything else, is a numbers game
For those who arent familiar, I host a podcast called Drafting Archetypes that covers how to draft a particular archetype each week