Visheen, Plane of the Many: Mechanics

Serenity: If you have more life than an opponent, you are serene. Used on 16 cards: Fight Serenity, Serenity Cantrip, Pacifism, Big Draw Serenity, Serenity Verdict, Serenity Bear, Smaller Flyer-ish, Soft Counter, Bounce Cantrip, Defender, Shanti, the Tranquil, Serenity Mana Dork, Naturalize, Protection Serenity, Serenity Indestructible, Sequester

Serenity is a mechanic that rewards you for having more life than your opponents while playing on the theme of reaching Nirvana in Buddhism.

Dream: If a creature you control would untap, you may instead cast this card from your hand for PARAM1. Used on 12 cards: Combat Trick, Shesha, the Everpresent, Mox Azurite, Dream Tuck, Large Flyer, Ophidian-Esque Dream, Power Drain Scry, Impulse Draw, Shatter Fight Dream, Token Spell Dream, Combat Trick, Large Creature Burn

Dream is a mechanic that allows creatures to remain tapped with the benefit of casting certain spells for a cheaper cost. Dream plays off of the Hindu belief in Chakra.

Transmigrate: When this creature dies, you may pay PARAM1 and exile another creature card from your graveyard. If you do, return this card to the battlefield and its power and toughness become the power and toughness of the exiled card. Used on 15 cards: Deathtouch Transmigrate, Hexproof Transmigrate, Pradha, the Beginning, Lifegain Transmigrate, Karana, the End, Lifelink Transmigrate, Large Flyer Transmigrate, Flying Transmigrate, Death Trigger Transmigrate, Menace Transmigrate, BG Signpost, Ramp Transmigrate, WB Signpost, Scry Transmigrate, Raffa, the Preserver

Transmigrate is a mechanic that allows creatures to come back from death with the "body," or power/toughness, of another creature. This plays off of the Hindu belief in reincarnation.

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}()]".