When Rishkar enters, put a +1/+1 counter on each of up to two target creatures.
Each creature you control with a counter on it has ": Add ."

Destroy X target artifacts and/or creatures. For each permanent destroyed this way, its controller reveals cards from the top of their library until an artifact or creature card is revealed and exiles that card. Those players put the exiled cards onto the battlefield, then shuffle.

Revolt — At the beginning of your end step, if a permanent left the battlefield under your control this turn, reveal the top card of your library. If it's a permanent card, you may put it onto the battlefield. Otherwise, you may put it on the bottom of your library.

Whenever Gonti's Aether Heart or another artifact you control enters, you get (two energy counters).
Pay eight , Exile Gonti's Aether Heart: Take an extra turn after this one.

Flying
If you would lose the game, instead exile this creature and your life total becomes equal to your starting life total.

Revolt — This creature enters with two +1/+1 counters on it if a permanent left the battlefield under your control this turn.

Double strike, haste
Whenever this creature attacks, you get (two energy counters), then you may pay eight . If you pay, untap all creatures you control, and after this phase, there is an additional combat phase.

Flying
When this Vehicle enters, you get (two energy counters).
Pay : This Vehicle gains lifelink until end of turn.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

All creatures get -3/-3 until end of turn.
You may cast a spell with mana value 3 or less from your hand without paying its mana cost.

When this creature enters, you may search your library for an artifact card with mana value 3, reveal it, put it into your hand, then shuffle.

Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)

This creature enters with X +1/+1 counters on it.
: Put a +1/+1 counter on this creature.
Remove a +1/+1 counter from this creature: It deals 1 damage to any target.

Trample
Whenever this creature enters or attacks, you get (an energy counter) for each creature you control.
Pay : This creature gets +1/+1 until end of turn.

Haste
Whenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni.
Sacrifice another creature: Yahenni gains indestructible until end of turn.

Create three 1/1 colorless Servo artifact creature tokens.
You may cast a spell with mana value 3 or less from your hand without paying its mana cost.

Whenever this creature dies or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

When this creature enters, target artifact you control gains ": This artifact deals 2 damage to any target" for as long as you control this creature.

, : Search your library for a permanent card, put it onto the battlefield, then shuffle.

Return up to three target artifacts and/or creatures to their owners' hands.
You may cast a spell with mana value 4 or less from your hand without paying its mana cost.

Flying
Sacrifice Hope of Ghirapur: Until your next turn, target player who was dealt combat damage by Hope of Ghirapur this turn can't cast noncreature spells.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.

Draw cards equal to the greatest power among creatures you control.
You may cast a spell with mana value 5 or less from your hand without paying its mana cost.

, , Tap X untapped artifacts you control: Look at the top X cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

First strike, menace
Whenever Kari Zev attacks, create Ragavan, a legendary 2/1 red Monkey creature token. Ragavan enters tapped and attacking. Exile that token at end of combat.

: Another target Vehicle you control becomes an artifact creature until end of turn.
Crew 4 (Tap any number of creatures you control with total power 4 or more: This Vehicle becomes an artifact creature until end of turn.)

Revolt — At the beginning of your end step, if a permanent left the battlefield under your control this turn, put a unity counter on this enchantment.
Creatures you control get +1/+1 for each unity counter on this enchantment.

When this creature enters, pay (two energy counters). If you can't, return this creature to its owner's hand and you get .

Gain control of target creature or Vehicle until end of turn. Untap it. It gains haste until end of turn.
You may cast a spell with mana value 2 or less from your hand without paying its mana cost.

At the beginning of your upkeep, scry 1.
Whenever you cast a creature spell, you may pay . If you do, draw a card.

Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you're done activating mana abilities pays for .)

Permanents you control gain hexproof and indestructible until end of turn.

Instant and sorcery spells you cast cost less to cast.
Whenever a spell or ability you control counters a spell, you may draw a card. If you do, discard a card.

Destroy X target artifacts. Create X 2/2 red Gremlin creature tokens.

Each opponent sacrifices a creature or planeswalker of their choice, then discards a card. You return a creature or planeswalker card from your graveyard to your hand, then draw a card.
When you cast a Bolas planeswalker spell, exile this card from your graveyard. That planeswalker enters with an additional loyalty counter on it.

Whenever you cast a spell, untap all nonland permanents you control.

When Oath of Ajani enters, put a +1/+1 counter on each creature you control.
Planeswalker spells you cast cost less to cast.