Steam Clean

Return target nonland permanent to its owner's hand. (Then exile this card. You may cast the creature later from exile.)

Scalding Viper

Whenever an opponent casts a spell with mana value 3 or less, Scalding Viper deals 1 damage to that player.

Mill seven cards. Then put all cards that have an Adventure from among the milled cards into your hand.

Trample
Permanent spells you cast that have an Adventure cost {1} less to cast.

Draw two cards, then discard two cards. (Then exile this card. You may cast the creature later from exile.)

Trample
Whenever you cast a spell with mana value 5 or greater, put a +1/+1 counter on Tempest Hart.

Tap target creature. Create a Cursed Role token attached to it. (Enchanted creature is 1/1.)

Exile the top two cards of your library. Until your next end step, you may play those cards.

Whenever you cast a spell that's white, blue, black, or red, put a +1/+1 counter on Questing Druid.