Cheapest priced copy (The Brothers' War): $0.39 at Card Kingdom, near mint, their price list as of .
Symmetry Matrix 
Artifact · Uncommon · The Brothers' War · #252
Whenever a creature you control with power equal to its toughness enters, you may pay {1}. If you do, draw a card.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.39 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Brothers' War | 252 | Uncommon | $0.39 | $0.79 |
One ruling from Wizards of the Coast
- 14 October 2022If one or more static abilities that apply to a creature entering the battlefield change its power or toughness, those abilities are considered when determining whether or not Symmetry Matrix's ability triggers. The same is true for replacement effects that apply to it, such as entering the battlefield with one or more +1/+1 counters or entering the battlefield as a copy of another creature.