| 5/3/2019 |
Affinity for artifacts means "This spell costs  less for each artifact you control." |
| 5/3/2019 |
Tezzeret himself doesn't have affinity for artifacts. |
| 5/3/2019 |
Affinity doesn't change the spell's mana value. It changes only how much mana you pay to cast the spell. |
| 5/3/2019 |
Affinity can reduce only generic mana in a spell's cost. It can't reduce color requirements. |
| 5/3/2019 |
The cost reduction is set before you pay any of the spell's costs. Specifically, you could lock in a discount for an artifact you control and then sacrifice that artifact to activate a mana ability. |
| 5/3/2019 |
If there are any additional costs or cost increases that would apply to a spell with affinity, apply those before applying any cost reductions. |
| 5/3/2019 |
If a spell has multiple instances of affinity, each applies. |
| 5/3/2019 |
In a Two-Headed Giant game, Tezzeret's first loyalty ability causes the opposing team to lose twice X life and you gain X life. |
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