Trample
When Centaur Mentor enters, target creature gets +X/+0 until end of turn, where X is your devotion to green.

Flying, haste
When Chainbreaker's Familiar enters, exile target instant or sorcery card from your graveyard. You may cast a copy of that card until the end of your next turn.
At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, you may return Chainbreaker's Familiar from your graveyard to your hand.

{T}: Add one mana of any color.
Whenever Chains of Broken Oaths becomes spellcharged, untap it.
Spellcharge 7

Charge Beam deals 4 damage to target creature or planeswalker.
Amity — If you attacked with exactly two creatures this turn, Charge Beam deals 2 damage to that permanent's controller.

Corrupt — When this creature enters, if you control a permanent with greater mana value, create two 1/1 white Citizen creature tokens.

Amity — When you cast this spell, copy it if you attacked with exactly two creatures this turn. You may choose new targets for the copy.
Target creature you control gets +2/+2 until end of turn. Untap it.

This land enters tapped.
{2}{G}{U}, {T}: Surveil 1.

If you would create one or more artifact tokens, instead create those tokens plus an additional Treasure token.
{2}{R}, Sacrifice X artifacts: This creature gets +X/+0 until end of turn.

Trample
Approval — Chromagoyf's power and toughness are each equal to the number of colors among permanents you control.

When Chromatic Hart enters, you may exile target card from a graveyard.
{T}: Add one mana of any color.

Choose one. If this spell's flashback cost was paid, instead choose three and you may choose the same mode more than once.
• Destroy target artifact.
• This spell deals 3 damage to any target.
• You may discard one or more cards. If you do, draw that many cards plus one.
Flashback {7}{R}{R}

Choose one. If this spell's flashback cost was paid, instead choose three and you may choose the same mode more than once.
• Draw a card, then you may put a permanent card from your hand onto the battlefield.
• You gain 1 life for each permanent you control.
• Destroy target nonbasic, noncreature permanent.
Flashback {7}{G}{G}

Choose a color. Exile all permanents of the chosen color. Until the end of your next turn, if you would add {C}, instead add {C} and one mana of the chosen color.

This spell costs {2} less to cast if the creature you control it targets has power 4 or greater.
Put a +1/+1 counter on target creature you control. It deals damage to another target creature equal to its power.

{1}, Sacrifice Claw Fossil: Target creature has base toughness 1 until end of turn. Activate only as a sorcery.
Surface {2}{B}. Claw Fossil surfaces transformed.

Whenever you attack, put a +1/+1 counter on a creature you control.

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

When Cliffside Scrappers enters, destroy target artifact an opponent controls.
Wander {3}{R}{R}

{T}: Add {C}.
If a spell or ability you control would produce {C}, you may pay 1 life. If you do, it produces {G} instead.

{T}: Add {C}.
If a spell or ability you control would produce {C}, you may pay 1 life. If you do, it produces {B} instead.

{T}: Add {C}.
If a spell or ability you control would produce {C}, you may pay 1 life. If you do, it produces {U} instead.

{T}: Add {C}.
If a spell or ability you control would produce {C}, you may pay 1 life. If you do, it produces {W} instead.

{T}: Add {C}.
If a spell or ability you control would produce {C}, you may pay 1 life. If you do, it produces {R} instead.

When Coercive Contractor enters, create a Treasure token.
{X}, {T}, Sacrifice a Treasure: Gain control of target nontoken creature with mana value X until end of turn. Untap that creature. It gains haste until end of turn. Activate only as a sorcery.

{T}, Sacrifice an artifact: Add one mana of any type.
Once each turn, when you cast an instant or sorcery spell, you may create a 1/1 colorless Construct artifact creature token.