Solidarity Whenever Battlehymn Howler attacks, add an amount of {G} equal to its power. Until end of turn, you don't lose this mana as steps and phases end.
When Beckoner of Ends enters, target player discards a card. Integrate that card. Beckoner of Ends has deathtouch as long as a land card is integrated onto it.
When Beguiling Stewards enters, if it's not a token, create a token that's a copy of it. Beguiling Stewards has deathtouch as long as you control another creature named Beguiling Stewards.
Return any number of target creature cards with total mana value twice X or less from your graveyard to the battlefield. They're artifacts in addition to their other types.
“At attention. Our service is still required.” —Eleanor, Kingslayer
Whenever you cast an instant spell, put a +1/+1 counter on Brass Oracle. Whenever you cast a sorcery spell, Brass Oracle deals damage to any target equal to its power.
Calamitous War Cry deals 2 damage to each creature. If there are six or more different creature types among creatures you control as you cast this spell, it deals 2 damage to each creature you don't control instead.
Counter all other spells. Exile up to one spell countered this way instead of putting it into its owner's graveyard. You may cast that spell for as long as it remains exiled, and mana of any type can be spent to cast it.
At the beginning of your upkeep, exile the top card of target opponent's library. You may play that card for as long as it remains exiled, and mana of any type can be spent to cast it. Spells you cast and don't own cost {1} less to cast.
Flying Whenever Capital Skyraiders deals combat damage to a player, integrate the top card of that player's library. Capital Skyraiders gets +3/+3 as long as four or more cards are integrated onto it.
Target opponent loses 3 life unless they discard a nonland card, then loses 3 life unless they sacrifice a nonland permanent. You gain life equal to the amount of life lost this way.
At the beginning of your end step, for each opponent with an even number of cards in hand, they lose 3 life and you gain 3 life. [+1]: Target player draws a card and loses 1 life. [–4]: Target opponent exiles one or more cards from their hand. Then you may have that player exchange their hand and the exiled cards.
Choose a color. Exile all permanents of the chosen color. Until the end of your next turn, if you would add {C}, instead add {C} and one mana of the chosen color.
“This new Leystone will be a beacon for the Vukoroq, no longer at the mercy of magic.” —Xiv
{T}, Exile an instant or sorcery card from your graveyard: Add one mana of any type. Once each turn, when you cast an instant or sorcery spell, you may create a 1/1 colorless Construct artifact creature token.