mtg list cards Bucket [Mystery Booster Playtest Cards] dwellers to embrace as my own Leveler | Mystery Booster/The List

Conspire Conspire is basically a replicate variant from Shadowmoor ,where you can tap two untapped creatures to make another copy of the spell

If the creature you control is an illegal target, you won't put two +1/+1 counters on it even if you have delirium

Marcy: Brynhildr is an Eidolon (another word often used for Summon, all of which are essentially a term for a category referred to as "Avatars") in FFXIII, where she appears as a motorcycle ridden by Sazh, and transforms into the form seen here when summoned

Thats pretty much the Djinn in a nutshell

This means that these cards are legal for use in any tournaments where the original printings are still legal.