Dragonfall Revised: Mechanics

Undying: When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield with a +1/+1 counter on it. Used on 5 cards: Rakshasa Fearmonger, Ravager of Gidharra, Thrall of Gidharra, Young Wolf, Gidharra, Living Death

*Battalion* -: Used on 3 cards: Zurgo's Vanguard, Zurgo Insurgent, Orc Squadmate

Bestow: If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature. Used on 5 cards: Soul of the Winds, Bone Strider, Spidersilk Elemental, Branchbender, Essence of Frost

Siphon: Each +1/+1 counter removed from among creatures you control as you cast this pays for {1}

. Used on 2 cards: Siphon Spirit, Anafenza, Vengeful Spirit

Slumber: You may have this creature enter the battlefield tapped. If you do, put a +1/+1 counter on it instead of untapping it the next time it would untap. Used on 0 cards:

Evoke: You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield. Used on 0 cards:

Solidify: You may have this creature enter the battlefield with PARAM1ASWORDS +1/+1 counters on it. It has hexproof as long as it does not have a +1/+1 counter on it. Used on 0 cards:

Rebound: If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost. Used on 2 cards: Ojutai’s Summons, Bloodfire Knowledge

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

. You may exile it at any time. When you do, you may cast it for its spellmorph cost. Used on 2 cards: Hardening Resolve, Gushing Lava

Conjure: If you cast this spell for its conjure cost, it resolves as an Elemental creature. Used on 0 cards:

Instants, Sorceries, Enchantments?

Finesse: A creature with Finesse gets +1/+0 for each noncreature spell its controller has cast this turn. Used on 0 cards:

Siphon v2: Each creature you control that you remove a counter from as you cast this pays for {1}

or one mana of any of that creature’s colors. Used on 0 cards:

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}()]".