Stonybrook Schoolmaster

Whenever Stonybrook Schoolmaster becomes tapped, you may create a 1/1 blue Merfolk Wizard creature token.

Night Market Lookout

Whenever Night Market Lookout becomes tapped, each opponent loses 1 life and you gain 1 life.

Inspired — Whenever Oreskos Sun Guide becomes untapped, you gain 2 life.

Khalni Garden enters tapped.
When Khalni Garden enters, create a 0/1 green Plant creature token.
{T}: Add {G}.

{T}, Tap an untapped creature you control: Add one mana of any color.

Defender
{T}, Tap an untapped creature you control: Add one mana of any color.

{T}, Tap an untapped artifact or creature you control: Add one mana of any color.

Whenever Volatile Wanderglyph becomes tapped, you may discard a card. If you do, draw a card.

{1}, {T}, Tap an untapped creature you control: Create a 1/1 green Saproling creature token.

Whenever Attentive Sunscribe becomes tapped, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Tap three untapped creatures you control: Each opponent loses 1 life.

Defender
Tap three untapped creatures you control: Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Tap an untapped creature you control: Prevent the next 1 damage that would be dealt to target creature this turn.

Tap two untapped artifacts and/or creatures you control: Sunshot Militia deals 1 damage to each opponent. Activate only as a sorcery.

{T}: Add {C}.
{T}, Tap an untapped creature you control: Add one mana of any color.

As an additional cost to cast this spell, tap four untapped creatures you control.
Draw three cards.

Whenever Samite Herbalist becomes tapped, you gain 1 life and scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Reach
{T}, Tap an untapped creature you control: Add one mana of any color.

{T}: Add {C}. ({C} represents colorless mana.)
{T}, Tap an untapped creature you control: Add one mana of any color.