Whenever you cast a spell, if mana from an artifact source was spent to cast it, you may copy that spell, and you may choose new targets for the copy. Do this only once each turn.

Create a token that's a copy of target creature you control, except it's a 1/1. When you do, pay for and choose any number.
+{C} — That token becomes a copy of a different target creature.
+{W} — You gain life equal to the number of creatures you control.
+{B} — Each player sacrifices a creature.

Look at the top three cards of your library. Put one into your hand and the rest into your graveyard.
Flashback—{B}, Discard a card.

Enchant creature
Enchanted creature gets +2/+0 and has “Attacking creatures you control get +1/+0.”
Wander {2}{R}

Whenever you cast a spell that targets Alranta Patrol, create a 1/1 white Human creature token. If Alranta Patrol is attacking, that token enters tapped and attacking.

Alranta Portalmage can't be blocked as long as a creature you control entered this turn.
If a creature you control entering the battlefield would cause an ability of a permanent you control to trigger, that ability triggers an additional time.

Trample
{T}, Pay 1 life: Add {C}.
Whenever Alranta Unleashed deals combat damage to a player, untap each Ruin you control. They become creatures in addition to their other types until the end of your next turn.
Spellcharge 6

{T}: Add {C}.
Whenever a creature you control entering the battlefield causes an ability of that creature to trigger, you may sacrifice Alranta, the Lofty Capital. If you do, return that creature to its owner's hand.

Flying
Whenever one or more artifacts an opponent controls enter, that player sacrifices them unless they pay {1}.
Nonbasic lands your opponents control enter tapped.

Flying
When Alrantan Skywatch enters, create a 1/1 white Human creature token and draw a card.

When Alrantan Visionary enters, reveal the top three cards of your library. Put a noncreature permanent card from among them into your hand and the rest into your graveyard.
{T}: Add one mana of any color.
Wander {4}{G}{G}

Favored
Whenever your Champion attacks, tap target creature.

As an additional cost to cast this spell, tap four untapped artifacts and/or lands you control.
{T}: Each opponent loses 1 life and you gain 1 life.
Tap four untapped artifacts and/or lands you control: Untap Altar of Chrome.

At the beginning of combat on your turn, put a +1/+1 counter on another target creature you control.
Once during each of your turns, you may cast a creature spell from your graveyard by removing a number of counters from among creatures you control equal to that spell's mana value in addition to paying its other costs.

Amity — Whenever you attack with Amateur Tamer and exactly one other creature, put a +1/+1 counter on target creature.

Once each turn, when you activate a nonmana ability, you may put a counter on Amber that it doesn't already have from among +1/+1, first strike, haste, lifelink, menace, and vigilance.
{R}, {T}: You may discard a card. If you do, draw a card.

Flying
Level up {3}{W}{W}
[level 1-2] Flying
[level 3+] Flying

Whenever a nontoken creature you control enters, surveil 1.
{G}, Exile this enchantment: Return target card from your graveyard to your hand. Activate only as a sorcery.

Vigilance, reach, trample, ward {3}
Ancient Cloudgrazer enters with X +1/+1 counters on it.

Whenever Ancient Conscriptor becomes spellcharged, gain control of target creature you don't control until end of turn. Untap it. It gains haste until end of turn.
Spellcharge 4

Whenever Anesthesiologist attacks, teach Anesthesiologist lifelink if you control a white permanent. Otherwise, you gain 2 life.

Flying
When Anvilwrought Crane dies, create a Weapon token.

Whenever you cast a spell that targets Anvilwrought Lion, creatures you control get +1/+0 until end of turn.

Whenever another nontoken permanent you control is returned to hand, you may create a token that's a copy of it. Do this only once each turn.
Each creature card with mana value 3 or less in your hand has ninjutsu {G}{U}.

At the end of combat on your turn, you may sacrifice another creature. If you do, Aoushun's Presence deals 2 damage to each opponent that creature attacked this turn and you draw a card.
{B}{R}: Aoushun's Presence becomes a 3/2 Dragon creature with flying in addition to its other types.