Reanimate hurts its self a lot as decks go, especially with its eponymous spell and so almost always packs at least one threat with the capacity to return life
though the flavour text does describe looking for a bigger giant
At the low cost of one specific colored mana, you can flip this card at the beginning of your first main phase
Each pack contains 1 art card, 1 full-art basic land, 6 connected commons or uncommons, 1 showcase or double-faced common/uncommon, 2 cards of any rarity (chance of showcase or double-faced), 1 rare or mythic rare (chance of showcase or double-faced), 1 foil of any rarity (chance of showcase or double-faced), 1 token/ad or special card from Magic's history.
First you have the sacs, shocks and original duals which are all able to come in untapped at any time and produce mana of any colour or turn one which are the two of the most valued things in a dual land