Shadowsun: Mechanics

Shadow: This creature can only block or be blocked by other creatures with shadow. Used on 5 cards: Stalk through Shadows, Shadowtalon Harpy, Cloak of Shadows, Shadow Demon, Guard the Shadows

Illuminate: turn the top card of your library face up. Used on 15 cards: Heartlight, Brightwing Angel, Light of Reason, Illuminator, Lumin Brightsword, Firebeetle Handler, Illuminated Knowledge, Lumin Soulblade, Light of Knowledge, Brightsoul Adept, Brightsword Commander, Brightmind Scholar, Illuminated Scroll, Piercing Ray, Illuminated Bolt

Some spells will have a variable effect based on the illuminated card's CMC. In these cases the variable is X+Y (Y usually being 1) so that, even if a land or {0} cost card is illuminated, the spell will still generate an effect.

Spellmorph: You may play this card facedown as a 2/2 colourless creature for {3}

. Turn it faceup at any time that you could legally cast it by paying its Spellmorph cost, then cast the spell. This then goes to the graveyard. Used on 4 cards: Crushquake, Shadow Slay, Dark Confusion, Living Lightning

Scry: Look at the top PARAM1 cards of your library then put any number of them on the bottom of your library and the rest on top of your library in any order. Used on 1 cards: Light of Knowledge

Hexproof: It cannot be the target of opponents spells and abilities. Used on 1 cards: Lupin Stalker

Spellmorph: You may play this card facedown as a 2/2 colourless creature for {3}

. Turn it faceup at any time that you could legally cast it by paying its Spellmorph cost, then attach it to target creature. Used on 1 cards: Web of Shadows

Spellmorph for Auras and Equipment

Spellmorph: You may play this card facedown as a 2/2 colourless creature for {3}

. Turn it faceup at any time that you could legally cast it by paying its Spellmorph cost. Used on 0 cards:

Spellmorph for non-aura enchantments and non-creature, non-equipment artifacts

Morph: You may cast this face down as a 2/2 colourless creature for {3}

. Turn it face up any time for its morph cost. Used on 4 cards: Obscurer, Contagion Beetle, Obscure in Darkness, Stygian Shadowblade

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}()]".