"Zion": Mechanics

Flux: PARAM1, Discard this card: Create an artifact token named Gold. It has "Sacrifice this artifact: Produce one mana of any color." Flux only as a sorcery. Used on 7 cards: Ember-Heart Menial, Savant of the Circle, Gilded Guardian, Whimsical Leprechaun, Philosopher’s Stone, Clay Golem, Stabilize

The token's lack of color omitted on purpose.

by foo_intherain (MTG Salvation)
https://www.mtgsalvation.com/forums/magic-fundamentals/custom-card-creation/615206-ug-alchemy

Ensemble: Used on 1 cards: Will of the Manifold

Ensemble — [effect] for each card type among permanents you control.

Lurk: As long as this creature is untapped, your opponents can't target it. Used on 4 cards: Inhuman Skinner, Magekiller, Spectral Covenant, Forgotten Lost

This mechanic is mainly {u/b} with {g} being tertiary. It's aimed to be evergreen (invalidating hexproof). I treated as though it had been introduced before so it's not "new" a mechanic here.

Shimmer: When this enters, create a 0/0 Reflection creature token with PARAM1ASWORDS +1/+1 counters on it. Used on 1 cards: Sharp-Edged Cord

See
https://www.mtgsalvation.com/forums/magic-fundamentals/custom-card-creation/367307-mirrors-and-reflection-tribal

Shimmer 0: When this enters, create a 0/0 Reflection creature token. Used on 2 cards: Glazed Screen, Foggy Mirror

When param is 0.

See
https://www.mtgsalvation.com/forums/magic-fundamentals/custom-card-creation/367307-mirrors-and-reflection-tribal

Call upon: To call upon PARAM1, remove a counter it. Used on 1 cards: Beckoning Flames

In card text or details pages, write the mechanic's code name (playtest name) between square brackets, like "[Crittercast]", "[Bushido 1]" or "[Delay 4 {2}{R}{R}]". It will be expanded to the mechanic's name plus reminder text, such as "Suspend 4 – {2} {r} {r} . (Rather than cast this spell from your hand,...)"
To expand a mechanic's name but not its reminder text, include parentheses at the end of the square brackets: "[Crittercast()]", "[Delay 9 {R}()]".