Vigilance

When Arbiter of Knollridge enters, each player's life total becomes the highest life total among all players.

Champion a Goblin (When this enters, sacrifice it unless you exile another Goblin you control. When this leaves the battlefield, that card returns to the battlefield.)

Whenever a Goblin you control deals combat damage to a player, you may create a 1/1 black Goblin Rogue creature token.

Changeling (This card is every creature type.)

Haste

Champion a creature (When this enters, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.)

When Hearthcage Giant enters, create two 3/1 red Elemental Shaman creature tokens.

Sacrifice an Elemental: Target Giant creature gets +3/+1 until end of turn.

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.

Other Giant creatures you control get +2/+2 and have trample.

Trample

Champion a Treefolk or Warrior (When this enters, sacrifice it unless you exile another Treefolk or Warrior you control. When this leaves the battlefield, that card returns to the battlefield.)

Whenever a creature you control becomes blocked, it gets +0/+5 until end of turn.

Champion an Elf (When this creature enters, sacrifice it unless you exile another Elf you control. When this creature leaves the battlefield, that card returns to the battlefield.)

: Create a 2/2 green Wolf creature token.

Wolves you control have deathtouch.