I was thinking that we could have a trade between our legions. The "give" option only sends one type of artifact with x amount of it. With this option, you can trade multiple artifacts at a time at a cost. This is what I had in mind: (Don't think this is a joke or spam, I'm just trying to help make this game better for everyone)

Trading Cooldown: 15 Minutes

Example 1:
Credits and Artifacts

Player x:
Continuum Beacon (5000 AP)

Player y:
2.5 Mill Credits

Accept | Decline
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The cost in credits for an artifact depending on its AP cost can be made by Dan. Cannot trade if credits are 1.5x above or 1.5x below the average price for the artifact.
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Example 2:
Artifact and Artifact

Player x:
Time Manipulator (750 AP)

Player y:
Nanite Swarm Capsules (750 AP)

Accept | Decline
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Artifact trade with other artifacts depend on the cost of AP for it. If you have 2000 AP worth of artifacts, the other trader needs at least 1750 AP worth or max of 2250 AP worth to trade.
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Example 3:
Artifacts and Research

Player x:
Sentry Guards (1000 AP)

Player y:
1250 RP

Accept | Decline
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Dan can make the cost of RP for an artifact. Cannot be less than 75% or 125% of RP or AP worth for each trade.
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Example 4:
Multiple Artifacts and Total Cost

Player x:
Crimson Obelisk + Grid Console (Total of 1700 AP)

Player y:
Drannik Saboteur (1600 AP)
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If you trade multiple at a time, the other player needs a total cost of what they are worth, One artifact with total cost, multiple artifacts that add up to total cost, and/or total cost with credits and research.
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You cannot trade planets (scan them yourself), minerals (get them yourself), Modules (Unbalanced), Reward Artifacts (NPC loot, Daily reward, mission, etc).

Was this mentioned before? If it has, I'm sorry for bringing it up again.