+arbor (16)
Put a +1/+1 counter on target creature. That creature gains reach until end of turn.
Reach
: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When Arbor Colossus becomes monstrous, destroy target creature with flying an opponent controls.
: Untap target Forest.
Trample
When Arborback Stomper enters the battlefield, you gain 5 life.
Flying
When Arborea Pegasus enters the battlefield, target creature gets +1/+1 and gains flying until end of turn.
When Arboreal Alliance enters the battlefield, create an X/X green Treefolk creature token.
Whenever you attack with one or more Elves, populate. (Create a token that's a copy of a creature token you control.)
When Arboreal Grazer enters the battlefield, you may put a land card from your hand onto the battlefield tapped.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
Hexproof (This creature can't be the target of spells or abilities your opponents control.)
Creatures can't attack a player unless that player cast a spell or put a nontoken permanent onto the battlefield during their last turn.
(Dryad Arbor isn't a spell, it's affected by summoning sickness, and it has ": Add .")
Gray Harbor Merfolk can't be blocked.
Gray Harbor Merfolk gets +2/+0 as long as you control a commander that's a creature or planeswalker.
Harbor Bandit gets +1/+1 as long as you control an Island.
: Harbor Bandit can't be blocked this turn.
Reach (This creature can block creatures with flying.)
Whenever Harbor Guardian attacks, defending player may draw a card.
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
Harbor Serpent can't attack unless there are five or more Islands on the battlefield.
Hinterland Harbor enters the battlefield tapped unless you control a Forest or an Island.
: Add or .
Kicker (You may pay an additional as you cast this spell.)
When Taunting Arbormage enters the battlefield, if it was kicked, all creatures able to block target creature this turn do so.
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