Grief Tyrant enters the battlefield with four -1/-1 counters on it.
When Grief Tyrant dies, put a -1/-1 counter on target creature for each -1/-1 counter on Grief Tyrant.

Whenever you cast an instant or sorcery spell, Guttersnipe deals 2 damage to each opponent.

Counter target artifact spell.
Draw a card.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Other creatures you control with infect get +1/+1.
Whenever you cast a creature spell with infect, target player gets a poison counter.

As an additional cost to cast this spell, sacrifice a land.
Search your library for up to two basic land cards, put them onto the battlefield, then shuffle your library.

Equipped creature gets +4/+4.
: Until end of turn, Haunted Plate Mail becomes a 4/4 Spirit artifact creature that's no longer an Equipment. Activate this ability only if you control no creatures.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

(Theme color: )

When Heliod's Pilgrim enters the battlefield, you may search your library for an Aura card, reveal it, put it into your hand, then shuffle your library.

You gain 4 life. Bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)

Flash (You may cast this spell any time you could cast an instant.)
Each creature you control that's a Wolf or a Werewolf gets +1/+1 and has trample.

Hungry Flames deals 3 damage to target creature and 2 damage to target player or planeswalker.

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Whenever equipped creature becomes blocked by a creature, you may draw two cards.
Equip

Hexproof, indestructible
Insidious Mist can't block and can't be blocked.
Whenever Insidious Mist attacks and isn't blocked, you may pay . If you do, transform it.

Target player draws two cards.

: Create a 1/1 green Saproling creature token.

When Jadecraft Artisan enters the battlefield, target creature gets +2/+2 until end of turn.

Choose one. If you control a commander as you cast this spell, you may choose both.
• Add for each card in target opponent's hand.
• Exile the top three cards of your library. You may play them this turn.

Whenever you draw your second card each turn, create a 2/2 green Cat creature token.
: Until end of turn, creatures you control have base power and toughness X/X, where X is the number of cards in your hand.