The first spell you cast during each of your opponent's turns cost {U}{B} less to cast.
During each ending phase, nonland cards in your graveyard have flash and surface. The surface cost is equal to their mana cost.
Surface {6}{U}{U}{B}

Flying, haste
Amity — Whenever you attack with Warden of Heart and exactly one other creature, you may put a legendary or Dragon card from your hand onto the battlefield tapped and attacking.

This spell can't be countered.
Flying, vigilance, trample
Players can't cast spells from anywhere other than their hands.
Spells your opponents cast that cost less than five mana to cast and target you and/or spells or permanents you control cost five mana to cast.

Flying
Amity — Whenever you attack with Warden of Soul and exactly one other creature, search your library for a legendary or Dragon card, reveal it, put it into your hand, then shuffle.

The first spell you cast during each of your turns costs {R}{G} less to cast.
You may play two additional lands on each of your turns.
Landfall — Whenever a land you control enters, you may exile the top three cards of your library. You may play those cards from exile as long as you control Warden of Tremors.

Flying
When Warden of Wishes enters, put three wish counters on it, then you gain 7 life.
Whenever you lose life, you may remove a wish counter from Warden of Wishes. If you do, put a card you own from outside the game into your hand.

[+2]: Mill three cards. You gain 3 life.
[+1]: Return target land card from your graveyard to the battlefield. It becomes a 2/2 black Zombie creature in addition to its other types.
[–2]: Target opponent sacrifices a nonland permanent with mana value 3 or greater.
[–12]: You get an emblem with “Whenever a player sacrifices a permanent, you may draw a card.” Then each opponent sacrifices five permanents.

At the beginning of combat on your turn, you may integrate another creature you control. If you don't, tap Xavvac, Corrupter Core.
Permanents you control with cards integrated onto them have lifelink and deathtouch.

Vigilance, haste
Whenever you cast a spell, if its mana value is greater than Xeia's power, put a number of +1/+1 counters on this creature equal to the difference and create a Treasure token.

Xiv, Replisparked has all activated and triggered abilities of permanent cards integrated onto them.
[+2]: Target player discards a card. Integrate up to two cards from graveyards.
[+1]: Xiv becomes a 5/5 artifact creature with vigilance and indestructible until end of turn.
[–4]: Integrate target permanent.

Whenever this creature attacks, exile up to one target creature card with mana value equal to 1 plus this creature's mana value from your graveyard. This creature becomes a copy of that card, except it has this ability.

{T}: Add {C}{C}.
Whenever you cast a Kraken, Leviathan, Octopus, or Serpent spell, draw a card.

Whenever a counter is put on another creature you control, you may put a counter of the same kind on Zeno. Then if there are no other counters of that kind on Zeno, draw a card. Do this only once each turn.

Flying, ward {1}
Zhovala, Silver Monarch gets +1/+1 for each other Advisor you control and each Advisor card you own in exile.
Whenever another Advisor you control dies, exile it unless an opponent pays {2}. You may cast that card as long as it remains exiled.

Ward—Pay 2 life.
Whenever Zygos attacks, bless target legendary creature you control.