Revolt of Kythos: Mechanics

Kicker: You may pay an additional PARAM1 to cast this spell. Used on 13 cards: Enlostphian Medic, Enlostphian Banisher, Sanctified Predation, Young Predator, Contort Ideas, Valley Recluse, Concentrated Blessing, Sacrifice Flesh, Zhouflay's Ritual, Goblin Occultist, Forced Decay, Waterfall's Ripples, Facial Assualt

Progress: To progress reveal cards from the top of your library until you reveal a nonland card with converted mana cost less than ~ and put it into your hand. Put the rest on the bottom of your library in a random order. Used on 7 cards: Insightful Exploration, Wise Sage, Calculated Distraction, Harden Focus, Enlostphian Skyrider, Enlostphian Arbiter, Manipulate Essence

Warcry: Whenever this creature attacks, it gets +1/+0 until end of turn for each other attacking creature Used on 7 cards: Thrag Conscriptor, Horde-stomper giant, Relentless Crow, Frenzied Marauder, Shambling Soldier, Idiot Insurgent, Grafak, Renown Weaponmaster

Thrive: Whenever this creature blocks or becomes blocked, put PARAM1 +1/+1 counters on it. Used on 8 cards: Rumas, Grappler of Tyrants, Reckless Baloth Chaser, Grown Up Yearling, Hermit of Yule, Lurking Arachnid, Thickskin Cobra, Highland Brawler, Yuroth Infiltrator

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}()]".