Trample, haste

Cumulative upkeep {G}{G} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Protection from blue

Forestwalk (This creature can’t be blocked as long as defending player controls a Forest.)

When Yavimaya Dryad enters the battlefield, you may search your library for a Forest card, put it onto the battlefield tapped under target player’s control, then shuffle.

When Yavimaya Elder dies, you may search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.

{2}, Sacrifice Yavimaya Elder: Draw a card.

Yavimaya Enchantress gets +1/+1 for each enchantment on the battlefield.

Flying

{G}: Regenerate Yavimaya Gnats.

Echo {2}{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 echo cost.)

When Yavimaya Granger enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Kicker {R} (You may pay an additional {R} as you cast this spell.)

Trample

When Yavimaya Iconoclast enters the battlefield, if it was kicked, it gets +1/+1 and gains haste until end of turn.

Yavimaya Kavu’s power is equal to the number of red creatures on the battlefield.

Yavimaya Kavu’s toughness is equal to the number of green creatures on the battlefield.

When Yavimaya Sapherd enters the battlefield, create a 1/1 green Saproling creature token.

Protection from artifacts

Domain — This spell costs {1} less to cast for each basic land type among lands you control.

Enlist (As this creature attacks, you may tap a nonattacking creature you control without summoning sickness. When you do, add its power to this creature’s until end of turn.)

{1}, Sacrifice Yavimaya Steelcrusher: Destroy target artifact.

Trample (This creature can deal excess combat damage to the player or planeswalker it’s attacking.)

Flying (This creature can’t be blocked except by creatures with flying or reach.)

First strike (This creature deals combat damage before creatures without first strike.)

At the beginning of your upkeep, you may sacrifice an artifact. If you don’t, tap Yawgmoth Demon and it deals 2 damage to you.

Protection from Humans

Pay 1 life, Sacrifice another creature: Put a -1/-1 counter on up to one target creature and draw a card.

{B}{B}, Discard a card: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever Ydwen Efreet blocks, flip a coin. If you lose the flip, remove Ydwen Efreet from combat and it can’t block this turn. Creatures it was blocking that had become blocked by only Ydwen Efreet this combat become unblocked.

Whenever another nontoken creature you control dies, you may return it to the battlefield face down under its owner’s control. It’s a Forest land. (It has no other types or abilities.)

Horsemanship (This creature can’t be blocked except by creatures with horsemanship.)

Yellow Scarves Cavalry can’t block.

Horsemanship (This creature can’t be blocked except by creatures with horsemanship.)

Yellow Scarves General can’t block.