Flying

When Airlift Chaplain enters the battlefield, mill three cards. You may put a Plains card or a creature card with mana value 3 or less from among the cards milled this way into your hand. If you don't, put a +1/+1 counter on Airlift Chaplain. (To mill a card, put the top card of your library into your graveyard.)

{T}: Add {W}.

{T}: Add one mana of any color in your commander's color identity.

({S} can be paid with one mana from a snow source.)

When Arcum's Astrolabe enters the battlefield, draw a card.

{1}, {T}: Add one mana of any color.

Sacrifice a creature: Add {C}{C}.

{W}, Sacrifice Auriok Replica: Prevent all damage a source of your choice would deal to you this turn.

When Aviary Mechanic enters the battlefield, you may return another permanent you control to its owner's hand.

{T}: Add {C}.

{1}, {T}, Sacrifice Bant Panorama: Search your library for a basic Forest, Plains, or Island card, put it onto the battlefield tapped, then shuffle.

Flash

Enchant creature

As Benevolent Blessing enters the battlefield, choose a color.

Enchanted creature has protection from the chosen color. This effect doesn't remove Auras and Equipment you control that are already attached to it.

Sacrifice Benevolent Bodyguard: Target creature you control gains protection from the color of your choice until end of turn.

Target permanent gains hexproof and indestructible until end of turn. If it's an artifact creature, it gets +2/+2 until end of turn.

When Candy Trail enters the battlefield, scry 2.

{2}, {T}, Sacrifice Candy Trail: You gain 3 life and draw a card.

{W}, Sacrifice a creature: Prevent the next 1 damage that would be dealt to any target this turn.

When Cartographer's Companion enters the battlefield, create a Map token. (It's an artifact with "{1}, {T}, Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

Flash

{1}, Sacrifice Cathar Commando: Destroy target artifact or enchantment.

When Cathodion dies, add {C}{C}{C}.

{1}, {T}, Sacrifice Chromatic Sphere: Add one mana of any color. Draw a card.

{1}, {T}, Sacrifice Chromatic Star: Add one mana of any color.

When Chromatic Star is put into a graveyard from the battlefield, draw a card.

{T}: Add one mana of any color in your commander's color identity.

Sacrifice Commander's Sphere: Draw a card.

{T}, Sacrifice Conjurer's Bauble: Put up to one target card from your graveyard on the bottom of your library. Draw a card.

Indestructible

{T}: Add {C}.

Desert of the True enters the battlefield tapped.

{T}: Add {W}.

Cycling {1}{W} ({1}{W}, Discard this card: Draw a card.)

Flash

{T}, Sacrifice Dire Mimic: Add one mana of any color.

{3}: Dire Mimic becomes a Shapeshifter artifact creature with base power and toughness 5/5 until end of turn.

Destroy target artifact or enchantment.

{2}{W}, {T}, Sacrifice Dispeller's Capsule: Destroy target artifact or enchantment.

Drifting Meadow enters the battlefield tapped.

{T}: Add {W}.

Cycling {2} ({2}, Discard this card: Draw a card.)

Whenever Dross Scorpion or another artifact creature dies, you may untap target artifact.

{T}: Add {C}.

{1}, {T}, Sacrifice Esper Panorama: Search your library for a basic Plains, Island, or Swamp card, put it onto the battlefield tapped, then shuffle.

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.)

Everflowing Chalice enters the battlefield with a charge counter on it for each time it was kicked.

{T}: Add {C} for each charge counter on Everflowing Chalice.

Defender

{1}, {T}: Mill a card. (Put the top card of your library into your graveyard.)

Sacrifice a creature: Regenerate target creature.

When Filigree Familiar enters the battlefield, you gain 2 life.

When Filigree Familiar dies, draw a card.

Artifact spells you cast cost {1} less to cast.

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

{T}: Each player mills a card.

Flying

When Glint Hawk enters the battlefield, sacrifice it unless you return an artifact you control to its owner's hand.

Whenever you cast an artifact spell, you may put a charge counter on Golem Foundry.

Remove three charge counters from Golem Foundry: Create a 3/3 colorless Golem artifact creature token.

Hidden Courtyard enters the battlefield tapped.

{T}: Add {W}.

{4}{W}, {T}, Sacrifice Hidden Courtyard: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

{W}, Sacrifice Implement of Improvement: You gain 2 life.

When Implement of Improvement is put into a graveyard from the battlefield, draw a card.

{1}, {T}, Sacrifice Jack-o'-Lantern: Exile up to one target card from a graveyard. Draw a card.

{1}, Exile Jack-o'-Lantern from your graveyard: Add one mana of any color.

Sacrifice Kami of False Hope: Prevent all combat damage that would be dealt this turn.

Flying

When Kor Skyfisher enters the battlefield, return a permanent you control to its owner's hand.

When Leonin Squire enters the battlefield, return target artifact card with mana value 1 or less from your graveyard to your hand.

Target artifact or creature gains hexproof and indestructible until end of turn. Scry 1.

Enchant creature

Enchanted creature gets +2/+2 and has "{1}, Sacrifice a permanent: This creature gains flying until end of turn."

Vigilance (Attacking doesn't cause this creature to tap.)

When Militia Bugler enters the battlefield, look at the top four cards of your library. You may reveal a creature card with power 2 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

{T}: Add {C}.

{1}, {T}, Sacrifice Mind Stone: Draw a card.

When Myr Kinsmith enters the battlefield, you may search your library for a Myr card, reveal it, put it into your hand, then shuffle.

When Myr Moonvessel dies, add {C}.

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.

{T}: Add one mana of any color.

{1}, {T}, Tap another untapped artifact you control: Draw a card, then discard a card.

Flying

When Perilous Myr dies, it deals 2 damage to any target.

When Raffine's Informant enters the battlefield, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Return target artifact or creature card with mana value 3 or less from your graveyard to the battlefield. If a creature enters the battlefield this way, it enters with an additional +1/+1 counter on it.

Sacrifice an artifact: Regenerate Rusted Slasher.

{W}, Sacrifice Salvage Scout: Return target artifact card from your graveyard to your hand.

When Sanitation Automaton enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Flash

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)

{T}: Target creature gets +0/+1 until end of turn.

Secluded Steppe enters the battlefield tapped.

{T}: Add {W}.

Cycling {W} ({W}, Discard this card: Draw a card.)

Defender

Whenever Shield Sphere blocks, put a -0/-1 counter on it.

{T}: Add {C}.

{1}, {T}, Sacrifice Shire Terrace: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Shriekhorn enters the battlefield with three charge counters on it.

{T}, Remove a charge counter from Shriekhorn: Target player mills two cards.

Flying

When Skyscanner enters the battlefield, draw a card.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

When Spirited Companion enters the battlefield, draw a card.

Flash

{4}, {T}, Sacrifice Springjaw Trap: It deals 3 damage to any target.

{T}, Tap an untapped creature you control: Add one mana of any color.

While an opponent is choosing targets as part of casting a spell they control or activating an ability they control, that player must choose at least one Flagbearer on the battlefield if able.

Flying

Artifact and enchantment spells you cast cost {1} less to cast.

Target creature gains protection from the color of your choice until end of turn.

When Stockpiling Celebrant enters the battlefield, you may return another target nonland permanent you control to its owner's hand. If you do, scry 2.

Whenever another creature enters the battlefield under your control, you may gain 1 life.

Whenever a creature enters the battlefield under an opponent's control, you may have that player lose 1 life.

Flying

Whenever you cast a historic spell, return target creature card with mana value 3 or less from your graveyard to the battlefield. (Artifacts, legendaries, and Sagas are historic.)

The Fair Basilica enters the battlefield tapped.

{T}: Add {W}.

{1}{W}, {T}, Sacrifice The Fair Basilica: Draw a card.

Sacrifice an artifact: Thermal Navigator gains flying until end of turn.

{T}: Add {C}.

{3}, {T}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Flash

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)

{T}: Target creature gets +1/+0 until end of turn.

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

When Trusty Packbeast enters the battlefield, return target artifact card from your graveyard to your hand.

Sacrifice Welding Jar: Regenerate target artifact.

Sacrifice Westfold Rider: Destroy target artifact or enchantment. Activate only as a sorcery.

When Workshop Assistant dies, return another target artifact card from your graveyard to your hand.