Army Ants

{T}, Sacrifice a land: Destroy target land.

Terminate

Destroy target creature. It can't be regenerated.

{2}, {T}, Sacrifice a land: Draw a card and put a charge counter on Arcane Spyglass.
Remove three charge counters from Arcane Spyglass: Draw a card.

Whenever a land is put into a graveyard from the battlefield, Akki Raider gets +1/+0 until end of turn.

Charcoal Diamond enters the battlefield tapped.
{T}: Add {B}.

Choose one —
• Abrade deals 3 damage to target creature.
• Destroy target artifact.

Fire Diamond enters the battlefield tapped.
{T}: Add {R}.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

{3}, {T}, Sacrifice an artifact or land: Draw a card.

{X}{X}{R}, {T}, Sacrifice Orcish Settlers: Destroy X target lands.

{T}: Add {C}.
{T}, Sacrifice Wasteland: Destroy target nonbasic land.

Enchant creature
Enchanted creature has first strike.
Threshold — Enchanted creature gets +3/+0 as long as seven or more cards are in your graveyard.