It comes in at only two mana but can become a copy of any creature you own, assuming you exile it, so while they are only two mana, you generally want to wait to cast them until you have something big in play, like Massacre Wurm or Crabomination
These are often designed as game-smoothers for fighting mana flood in Limited, allowing you to replace your 17 th land with a card that can be mana if needed but also serves as a better topdeck on turns 7 and beyond
Blightsteel Colossus 8.5 For cards that can one shot people this is probably the best
Compared to other decks like Gardevoir ex, it might seem a little over the top, but having all four types of Energy is essential to make Pikachu ex shine
Yes, you keep all the cards you draft in a Quick Draft
Pull rates for cool cards also arent terrible, so its not uncommon for me or someone I know to get a rare card that we want to share