As this artifact enters, choose two different colors.
Each spell you cast that's one or more of the chosen colors costs {1} less to cast.

Flying, haste
Whenever one or more +1/+1 counters are put on this creature, it deals that much damage to each opponent.
At the beginning of your end step, return this card from your graveyard to your hand if one or more +1/+1 counters were put on a creature you control this turn.

When this enchantment enters, it deals X damage to each creature.
Whenever one or more creatures your opponents control die, you create a Treasure token. This ability triggers only once each turn.

Splintering Blast deals 4 damage to target creature. If you controlled a creature with menace as you cast this spell, instead Splintering Blast deals 4 damage divided as you choose among up to two target creatures.

Menace
Amity — Whenever you attack with Splitting Smog and exactly one other creature, you may pay {1}{R}. If you do, attacking creatures you control get +2/+0 until end of turn.

Create a 1/1 green Saproling creature token for each permanent card you own in your graveyard and in exile.
Flashback {2}{G}{G}

This land enters tapped.
Level up {W}{W}{W}
[level 1-2] Lifelink
This land is also a creature.
[level 3+] Lifelink
This land is also a creature.

Create two 1/1 green Elf creature tokens. Then if there are six or more different creature types among creatures you control, put a +1/+1 counter on each of those tokens.
Draw a card.

Whenever you cast an instant, sorcery, or Aura spell that targets only Star-Seeking Dreamer, copy that spell for each other creature you control that the spell could target. Each copy targets a different one of those creatures.

Reach
Whenever Star-Studded Sagittaur deals combat damage to a player, you may bless target land.

As this land enters, you may pay 2 life. If you don't, it enters tapped.
{T}: Add {W} or {B}.

Put a haste counter on up to one target creature.
Draw a card.

Vigilance
{T}: Add {C}.
{T}: Add {C}{C}. Activate only if Steadfast Gatekeepers is a creature.
Spellcharge 3

Steam Colony enters tapped.
{T}: Add {U} or {R}.
{1}, Discard Steam Colony: Scry 2.

This spell costs {1} less to cast for each differently named land you control.
Stella's Journal enters with X page counters on it.
At the beginning of your end step, if you have fewer cards in hand than the number of page counters on Stella's Journal, draw cards equal to the difference.

Create a Berry token, then sacrifice any number of Berry tokens. Target creature you control gets +1/+1 until end of turn for each Berry sacrificed this way. Then it fights target creature you don't control.

When this creature enters, you may search your library for a creature or land card with mana value 1 or less, put it onto the battlefield, then shuffle.
{1}{G}: You may return another creature or land you control to its owner's hand. If you do, this creature gains indestructible until end of turn.

When Stratos Sentry enters, target opponent chooses a nontoken creature they control. You integrate that creature.
As long as a creature card with power 3 or less is integrated onto Stratos Sentry, it gets +1/+0 and has flying.

When Streaking Sunrise enters, scry 1, then exile the top card of your library. You may play it until the end of your next turn.

Stunning Cascade enters tapped.
{T}: Add {U} or {R}.
{2}{U}{R}, {T}, Sacrifice Stunning Cascade: Draw a card.

{T}: Create a Treasure token.
{T}, Sacrifice a Treasure: Put a +1/+1 counter on target creature. Activate only as a sorcery.
{T}, Sacrifice two Treasures: Create a 0/0 colorless Robot artifact creature token with four +1/+1 counters on it. Activate only as a sorcery.
{3}: Untap Subsidized Market.

Target creature gets +3/+3 until end of turn. If the total number of land cards you own in exile, in your graveyard, and on the battlefield is at least seven, it gets +5/+5 instead, then untap it.

Target opponent separates their creatures into two piles. Gain control of each creature from the pile of your choice until end of turn. Untap them. They get +1/+0 and gain trample and haste until end of turn.

Haste
When Summoning Swords enters, search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.
Spellcharge 7

Sunlit Ruins enters tapped unless you control a Swamp.
{T}: Add {G} or {W}.