Ognis, the Dragon's Lash

Haste
Whenever a creature you control with haste attacks, create a tapped Treasure token.

Party Thrasher

Noncreature spells you cast from exile have convoke. (Each creature you tap while casting a noncreature spell from exile pays for {1} or one mana of that creature's color.)
At the beginning of your first main phase, you may discard a card. If you do, exile the top two cards of your library, then choose one of them. You may play that card this turn.

Mountain

Angel's Tomb

Whenever a creature you control enters, you may have this artifact become a 3/3 white Angel artifact creature with flying until end of turn.

Viashino Sandstalker

Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, return this creature to its owner's hand. (Return it only if it's on the battlefield.)

Viashino Pyromancer

When this creature enters, it deals 2 damage to target player or planeswalker.

Faithless Looting

Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Viashino Racketeer

When this creature enters, you may discard a card. If you do, draw a card.

Smoke

Players can't untap more than one creature during their untap steps.

Onslaught

Whenever you cast a creature spell, tap target creature.

Viashino Sandscout

Hazoret's Monument

Red creature spells you cast cost {1} less to cast.
Whenever you cast a creature spell, you may discard a card. If you do, draw a card.

Viashino Sandsprinter

Trample, haste
At the beginning of the end step, return this creature to its owner's hand. (Return it only if it's on the battlefield.)
Cycling {R} ({R}, Discard this card: Draw a card.)

Forgotten Cave

This land enters tapped.
{T}: Add {R}.
Cycling {R} ({R}, Discard this card: Draw a card.)

Meekstone

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Viashino Cutthroat

Haste
At the beginning of the end step, return this creature to its owner's hand.