Dual Lands The original dual lands like Volcanic Island, Underground Sea, Tundra, Badlands, and the rest are the gold standard for mana fixing in cEDH
The energy cards are largely a miss, unless youre playing energy (obviously?), in which case theyre all considerations
Wurmcoil Engine and Myr Battlesphere are good examples of big threats that also create tokens you can sacrifice to Breya, Etherium Shaper
"The rarest card in Magic: The Gathering's Anniversary Set is one in $100,000 worth of packs"
Alexi, Zephyr Mage (Masques/Nemesis/Prophecy) Here's the difference between Odyssey Block and Masques Block: There weren't a lot of spells that could kill a three toughness creature in Masques Block, where there are quite a few in Odyssey Block
They're made as tribute material and the more easily you generate these tokens, the easier it is you play the big eldrazi spells