Official Rulings
I have Praetor Marius (WoE 282) and four Researcher (WoE 174) token creatures to its left in my battleline. My opponent has Barrister Joya (AoA 228) in play. Can I use the Omni: ability on my Researchers even if I don't have any Mars cards in my hand?
Yes. Resolve as much as you can when resolving card abilities.
Source: Rulebook
I have Praetor Marius (WoE 282) and four Researcher (WoE 174) token creatures to its left in my battleline. My opponent has Barrister Joya (AoA 228) in play. Can I use the Omni: ability on my Researchers even if I don't have any Mars cards in my hand?
Yes. Resolve as much as you can when resolving card abilities.
Source: Rulebook
Related Cards
Researcher is featured in the flavor text of the following cards:
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