mtg cards like winter orb [Fourth Edition Foreign Black Border ] players cant untap more than one land during their untap steps. Winter Orb Proxy

$50 Upgrade Guide for Eldrazi Incursion So heres the thing

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Heres the basic stuff from the Comprehensive Rules to get us on the right path on determining what is and what isnt a mana ability: 605.1a An activated ability is a mana ability if it meets all of the following criteria: it doesnt require a target (see rule 115.6), it could add mana to a players mana pool when it resolves, and its not a loyalty ability

#97 Aether Storm (Homelands / 5th Edition) Why is it bad

Carrion Feeder is pretty swell here as well as a free sacrifice

Coming in at 13/13 with flying, trample, and protection from instants is only the tip of the iceberg