| 10/1/2007 |
If one half of a split card has a mana value of 3 or less and doesn't have an  in its mana cost, Gaddock Teeg lets you cast that half. |
| 12/7/2018 |
A spell's mana value is determined only by its mana cost. Alternative costs (including casting a spell "without paying its mana cost"), additional costs, and cost reductions don't affect a spell's mana value. |
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