Flying
Whenever Kinsbaile Balloonist attacks, you may have target creature gain flying until end of turn.

When Kinsbaile Skirmisher enters the battlefield, target creature gets +1/+1 until end of turn.

, : Target attacking creature gets +2/+2 until end of turn.

As long as you control a Giant, Kithkin Greatheart gets +1/+1 and has first strike.

When Kithkin Harbinger enters the battlefield, you may search your library for a Kithkin card, reveal it, then shuffle your library and put that card on top of it.

: Prevent the next 1 damage that would be dealt to any target this turn.

Whenever an attacking Kithkin or Elf is put into your graveyard from the battlefield, you may draw a card.

First strike
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Whenever a Goblin you control is put into a graveyard from the battlefield, you may put a +1/+1 counter on Knucklebone Witch.

Target creature gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy that creature.)
Draw a card.

Lairwatch Giant can block an additional creature each combat.
Whenever Lairwatch Giant blocks two or more creatures, it gains first strike until end of turn.

Choose a card name, then target player mills a card. If a card with the chosen name was milled this way, you gain life equal to its converted mana cost.
Draw a card.

Lash Out deals 3 damage to target creature. Clash with an opponent. If you win, Lash Out deals 3 damage to that creature's controller. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher converted mana cost.)

: Add .

Enchant creature
Enchanted creature is a Treefolk with base power and toughness 0/4 and loses all abilities.

[+1]: Target player discards a card.
[−2]: Search your library for a card, then shuffle your library and put that card on top of it.
[−8]: Put all creature cards from all graveyards onto the battlefield under your control.

: Target Goblin creature you control gets +1/+0 and gains flying until end of turn. Sacrifice that creature at the beginning of the next end step.

Whenever you cast an Elf spell, you may create a 1/1 green Elf Warrior creature token.

, Discard an Elf card: Target creature gets -X/-X until end of turn, where X is the number of Elves you control.

Other Goblin creatures you control get +1/+1.
: Regenerate another target Goblin.