Sorcery Each player sacrifices the creature he or she controls with the highest converted mana cost unless he or she pays that creature's mana cost
So, Nomads-en-Kor for the ability activation, and a combination of Pearl Medalion, Cloud Key, or Urzas Incubator for cost reduction, and you have a creature able to keep flickering in and out ad nauseum
This card turns your artifacts into Black Lotus, so you can now sacrifice your boring Treasure or 1/1 token to generate 3 mana
Battlefield Forge prints Battlefield Forge SOC# 362 Battlefield Forge EOC# 58 Battlefield Forge FIC# 375 Battlefield Forge TDC# 340 Battlefield Forge BLC# 293 Battlefield Forge M3C# 321 Battlefield Forge OTC# 271 Battlefield Forge LTC# 296 Battlefield Forge BRO# 257 Battlefield Forge BRO# 297 Battlefield Forge DMC# 198 Battlefield Forge C21# 278 Battlefield Forge C20# 257 Battlefield Forge ORI# 244 Battlefield Forge M15# 240 Battlefield Forge 10E# 348 Battlefield Forge 9ED# 318 Battlefield Forge AP# 139
There may be decks running almost no energies and then there may be decks that have huge energy acceleration and can run up to 18 energies
Players who preorder booster boxes from their local game stores may be eligible for special promo cards