While some conspiracies can be great and can give some massive advantages, the truth is that none of these cards are particularly strong on their own
If that explored card is a land, you can take a land from your hand and put it into play tapped
3 25% of the time, Set Boosters contain a card from The List interesting cards from anywhere in Magic's history, printed as they appeared (including art, frame, and expansion symbol) plus a small Planeswalker symbol in their lower-left corner
The creature is a common 3/3 for five mana with landfall, make a 1/1 Saproling, which should be a lot of land here where most of my ramping is land based rather than mana rocks
Its a great creature to blink
Generally speaking, you want to try and find cards that affect all of your opponents while leaving your own stuff untouched