Trample
When this creature enters, you become the monarch.
Whenever you tap a land for mana while you're the monarch, add an additional one mana of any color.

Until end of turn, target creature gets +6/+6 and gains trample, and all creatures able to block it this turn do so.
Miracle

Trample
When Rhino enters, destroy target artifact or land. Distribute three +1/+1 counters among up to three other target creatures. They gain trample until end of turn.

You may have this creature assign its combat damage as though it weren't blocked.
: Regenerate this creature.

Create two 3/3 green Insect creature tokens. You gain 2 life.
Flashback

Draw cards equal to the greatest power among creatures you control.
You may cast a spell with mana value 5 or less from your hand without paying its mana cost.

Cumulative upkeep
If a land is tapped for mana, it produces colorless mana instead of any other type.

Rocksteady can't be blocked by more than one creature.
Boars you control can't be blocked by more than one creature.
Forestcycling

Creatures you control have ": Add ."
When Rok-Tahk enters, create Murf, a legendary 0/1 green Ooze Slug creature token with indestructible.

Morph
When this creature is turned face up, you may put a creature card from your hand onto the battlefield.

Convoke
Tap two untapped creatures you control: This creature gets +2/+2 until end of turn.

Reach
Forestcycling

Whenever a creature you control deals combat damage to a player, add that much . Until end of turn, you don't lose this mana as steps and phases end.

Trample
Basic landcycling

Mutate
Trample
Whenever this creature mutates, destroy target noncreature permanent. Its controller creates a 3/3 green Beast creature token.

Choose up to five [paw] worth of modes. You may choose the same mode more than once.
[paw] — Put a +1/+1 counter on a creature you control. It gains vigilance and trample until end of turn.
[paw][paw] — Choose artifact or enchantment. Destroy all permanents of the chosen type.
[paw][paw][paw] — Draw cards equal to the greatest power among creatures you control.

Return any number of cards with different mana values from your graveyard to your hand. Put Seasons Past on the bottom of its owner's library.

Reveal the top eight cards of your library. You may put a creature card from among them onto the battlefield. Put the rest into your graveyard.
Ferocious — If you control a creature with power 4 or greater, you may put two creature cards onto the battlefield instead of one.

Reveal the top seven cards of your library. Choose from among them a card with flying, a card with first strike, and so on for double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance. Put one of the chosen cards onto the battlefield, the other chosen cards into your hand, and the rest into your graveyard.

Council's dilemma — Starting with you, each player votes for wild or free. Reveal cards from the top of your library until you reveal a creature card for each wild vote. Put those creature cards onto the battlefield, then shuffle the rest into your library. You may put a permanent card from your hand onto the battlefield for each free vote.

Other Snake creatures you control get +2/+2.
Whenever a Snake you control deals combat damage to a player, you may draw a card.

: This creature gets +1/-1 until end of turn.

Graft 3
: Until end of turn, target creature with a +1/+1 counter on it gains "Whenever this creature deals combat damage to a creature, destroy that creature at end of combat."

Vigilance
Whenever Skanos, Green Dragon Vassal attacks, untap another target attacking creature. It gets +X/+0 until end of turn, where X is Skanos's power.

This card is a specialized version of Skanos, Dragon Vassal.

Vigilance
Reach

Trample
Forestcycling

Trample
Whenever another nontoken creature you control enters, you may draw a card.

Reach
: Create a 3/3 green Beast creature token.
, Exile this card from your graveyard: Create a 3/3 green Beast creature token.

Strange new worlds — When this creature enters, you gain life equal to the number of differently named lands you control.
This creature can't be blocked by artifact creatures.
This creature can't be the target of abilities from artifact sources your opponents control.