Illorica: Mechanics

Kicker: You may pay an additional PARAM1 as you cast this spell. Used on 12 cards: Faithful Messenger, Reach Out of Elyss, Fantastic Resolve, Mental Catch, Resolution Grasp, Elyssgate Mystic, Revisit, Ronir's Tactics, Mourning Mist, Serevarie's Seeking, Converse with the Soul, Barrier Shatter

Spirit Guide: When this creature dies, you may search your library for a creature that shares a type with this creature, reveal it, and put it into your hand. If you do, shuffle your library. Used on 3 cards: Spirit Guide, Spreading Root, Walker in the Mists

This appears on the green creatures in this set. It's mean to represent the guidance of an ancestor or a deceased friend.

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}()]".