You may exert Rhonas's Stalwart as it attacks. When you do, it gets +1/+1 until end of turn and can't be blocked by creatures with power 2 or less this turn. (An exerted creature won't untap during your next untap step.)

Aftermath (Cast this spell only from your graveyard. Then exile it.)
Each opponent loses X life.

Aftermath (Cast this spell only from your graveyard. Then exile it.)
Each opponent chooses a creature they control. You gain control of those creatures.

Whenever you cast a noncreature spell, you may have Riddleform become a 3/3 Sphinx creature with flying in addition to its other types until end of turn.
: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Flying
: You gain 2 life and draw a card.

Aftermath (Cast this spell only from your graveyard. Then exile it.)
Up to three target lands don't untap during their controller's next untap step.

Whenever you cycle or discard a card, you may pay . If you do, put a -1/-1 counter on target creature.

Lifelink
Embalm (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Cat with no mana cost. Embalm only as a sorcery.)

Flash
Double strike, vigilance, haste
Other creatures you control have haste.
, : Untap another target creature.

[+1]: Up to one target creature gains double strike until end of turn.
[−2]: Samut, the Tested deals 2 damage divided as you choose among one or two targets.
[−7]: Search your library for up to two creature and/or planeswalker cards, put them onto the battlefield, then shuffle your library.

When Sand Strangler enters the battlefield, if you control a Desert or there is a Desert card in your graveyard, you may have Sand Strangler deal 3 damage to target creature.

Creatures with flying can't attack you or planeswalkers you control.
At the beginning of your end step, create a 5/5 green Wurm creature token.

Exile up to three target cards from a single graveyard.
Cycling (, Discard this card: Draw a card.)

(: Add or .)
Scattered Groves enters the battlefield tapped.
Cycling (, Discard this card: Draw a card.)

: Add .
, , Sacrifice a Desert: Exile all cards from all graveyards.

: Draw a card, then discard a card. Activate this ability only if you've cast a noncreature spell this turn.

, , Discard a card: Target player mills three cards.

Return to your hand all cards in your graveyard that you cycled or discarded this turn.

Flying
Whenever you cycle or discard a card, Shadowstorm Vizier gets +1/+1 until end of turn.

Destroy all artifacts. They can't be regenerated.