Create a 3/1 red Dinosaur creature token. When you do, pay for and choose any number.
+{G} — Put a trample counter on target creature you control.
+{U} — Put a +1/+1 counter on target creature you control.
+{R} — Put a haste counter on target creature you control.

Whenever you cast an instant or sorcery spell, untap Orbinoid.
{T}: Add one mana of any type.

Target creature you control gets +2/+1 until end of turn. It fights up to one target creature you don't control.

Solidarity
Londel Sharpshot can't be blocked by creatures with power 2 or less.

Whenever you cast an instant spell, up to one target creature gets +2/+2 until end of turn.
Whenever you cast a sorcery spell, reveal the top card of your library. If its mana value is less than the greatest power among creatures you control, put it into your hand.

At the beginning of your end step, untap another permanent. Then if it's your first turn of the game or you discarded a card named Leystone of Growth this turn, put a growth counter on that permanent. It gains “{T}: Add one mana of any type.”
Cycling {G}

Vigilance, trample
As long as there are five or more instant and/or sorcery cards in your graveyard, Lagoroth, Century's Apex has haste and ward {5}.
As long as there are ten or more instant and/or sorcery cards in your graveyard, Lagoroth gets +10/+10.

Target creature gets +2/+2 until end of turn. If you've cast another instant or sorcery spell this turn, put a +1/+1 counter on it.

Put a hexproof counter on target creature you control. At the beginning of the next end step, remove a counter from that creature.

{2}{G}: Endangered Scinok gets +1/+1 until end of turn. This ability costs {1} less to activate until end of turn.

Untap all lands you control. Until end of turn, they become 1/1 Elemental artifact creatures with vigilance, indestructible, and haste in addition to their other types.

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.

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

Target creature gets +2/+0 until end of turn and must be blocked this turn if able.

Aggressor Model enters with a +1/+1 counter on it.

Add {W}{U}{B}{R}.

Aethersteel Pouncer enters with a haste counter on it.

Choose one —
• Wyrmshot deals 3 damage divided as you choose among one, two, or three targets.
• Wyrmshot deals 6 damage to target creature, planeswalker, or battle.

Haste
When Wildfang Cavalier dies, create a 3/1 red Dinosaur creature token. It gains haste until end of turn. If it's your combat phase, there is an additional combat phase after this phase.

Menace
Solidarity

Whenever you gain control of a permanent you don't own or a permanent you don't own enters under your control, put a +1/+1 counter on Vagrant Sorceress.

This spell can't be countered.
Terminal Impact deals damage to any target equal to the amount of mana spent to cast it. If at least seven mana was spent to cast it, you may have it deal that much damage to each creature and each player instead.

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.

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

Whenever you cast an instant or sorcery spell, choose one that hasn't been chosen this turn —
• Create a 1/1 colorless Construct artifact creature token.
• Discard a card, then draw a card.
• Add one mana of any type.