Urza's Saga

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

{T}: Untap two target lands.

{2}{B}, {T}: Exile up to three target cards from a single graveyard.

{T}: Counter target spell unless its controller pays {1}.

{T}: Add {G} for each Elf on the battlefield.

Trample

Echo {4}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay ...

Whenever Cave Tiger becomes blocked by a creature, Cave Tiger gets +1/+1 until end of turn.

When Monk Realist enters the battlefield, destroy target enchantment.

First strike {1}{B}: Regenerate Sanguine Guard.

Sacrifice an enchantment: You gain life equal to the sacrificed enchantment's converted mana cost.

Sacrifice Blood Vassal: Add {B}{B}.

Serra Avatar's power and toughness are each equal to your life total. When Serra Avatar is put into a graveyard from anywhere, shuffle it into its ...

Echo {1}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay ...

Whenever Retromancer becomes the target of a spell or ability, Retromancer deals 3 damage to that spell or ability's controller.

{B}: Regenerate Unworthy Dead.

Flying Whenever Ravenous Skirge attacks, it gets +2/+0 until end of turn.

Treefolk Seedlings's toughness is equal to the number of Forests you control.

{G}, {T}, Sacrifice Elvish Lyrist: Destroy target enchantment.

Whenever a player casts a green spell, put a +1/+1 counter on Titania's Chosen.

{T}: Fire Ants deals 1 damage to each other creature without flying.

{B}: Looming Shade gets +1/+1 until end of turn.

Protection from black Cycling {2} ({2}, Discard this card: Draw a card.)

Echo {G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its...