Lyonar - Divine Bond - Budget friendly, easy to use, can make different styles of decks around it.
Vetruvian - Sandswirl Reader - Good removal/bounce card, also generates a tile which provides value over time.
Songhai - Gotatsu - Can be used as ping, draws a card, can use on your own minions for creative lethal.
Vanar - Gravity Well - Can use to grab multiple mana tiles, annoying for the opponent, can deny opponent mana tiles early, gives you the ability to reach across the board as well.
Abyssian - Daemonic Lure - Can act as ping, move your opponent’s minion to your advantage, can be a good advantage to have in your hand as Player 2 for your Turn 1 as it can help remove your opponent’s turn 1 play.
Magmar - Flash reincarnation - Ramps powerful minions out early or fun meme minions.
Neutral - BTA, Healing Mystic, Golem Metallurgist, Wild Tahr, Spelljammer, Blue Conjourer, Inquistor Kron. All of them are pretty good.