This is quite relevant, as for the cost of one blue mana, Geralf may be tapped to sacrifice a creature
This crafting scheme requires you to earn, or sometimes buy, additional Wildcards of the right rarity to make copies of the card you need to finish off your deck
Nessian Hornbeetle Rarity: Uncommon TYPE: Creature SUBTYPE: Insect CMC: 2 Mana cost: USD: $0.19 EUR: 0.06 TIX: 0.03 EDHREC RANK: 13178 (2/2) At the beginning of combat on your turn, if you control another creature with power 4 or greater, put a +1/+1 counter on this creature
Were now in that tentative lull between preview season and Prerelease, with players set to get their hands on Tarkir: Dragonstorm this weekend
Take Faithless Looting, for example: you draw two cards, but you have to discard two, and you used up the Faithless Looting