Flare Elemental
Creature -- Elemental
Trample, Haste.
3/1

dos this belong here?

Ghostly Shackles
Enchantment-Aura (C)
Enchant creature
Enchanted creature can't be equipped and can't be enchanted by other Auras

hahahahahaha

Posted this before, but:

Bear Den —
Enchantment — Aura
Enchant land
When Bear Den enters the battlefield, create a 2/2 green Bear creature token.
Whenever you tap enchanted land for mana, add (an additional) to your mana pool.

Peaches and Cream
Instant (C)
Whenever a creature enters the battlefield under your control this turn, you gain 1 life.
A mix of the peaches from the eternal garden and the milk of the sacred ox makes a powerful elixir

Seeker of Ripe Fruit
Creature - Troll Monk
When ~ enters the battlefield, you may reveal a Mountain card from your hand. If you do, add of any one color to your mana pool.
When ~ enters the battlefield, you may reveal a Plains card from your hand. If you do, you gain 4 life.
1/1

Or conversely...

Trespass Stalker
Creature - Cat Ninja
When ~ enters the battlefield, you may reveal a Forest card from your hand. If you do, add to your mana pool.
1/2

I honestly think nor needs temporary mana production. Actually, no color needs temporary mana production.

Mask of Invincibility
Enchantment (R)
You have hexproof

Cryptbreak
Sorcery(C)
Return up to two creature cards from your graveyard to your hand. You lose 2 life.

Stage Fright
Enchantment
Whenever an opponent becomes the target of a spell, that player discards a card.

Demotivator

Artifact
: Tap target creature.

Prodigal Witch

Creature -- Human Wizard
1/1
: Target player loses 1 life.
: Target creature gets -1/-1 until end of turn.

Tended Garden
Enchantment (R)
At the beginning of your upkeep put a growth counter on Tended Garden.
Remove a growth counter from Tended Garden : Add one mana of any color to your mana pool.

Intercept
Instant
Counter target instant spell.
Draw a card.

Primal Anthem
Enchantment-Aura
Creatures you control get +1/+1 and have trample