msem-instigator

Whenever you cast a Knight spell or an Adventure spell, Wimbledon's Squire gets +1/+1 until end of turn.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
When Winding Snake has three or more +1/+1 counters on it, remove them all and transform it.

Whenever one or more creatures attack you or a planeswalker you control, put a charge counter on Windmill Project.
{T}: Add {C}.
{T}, Remove X charge counters from Windmill Project: Add X mana in any combination of colors.

Windworn Spires enters the battlefield tapped.
{T}: Add {R}.
Desertcycling {1}{R} ({1}{R}, Discard this card: Search your library for a Desert card, reveal it, and put it into your hand, then shuffle.)

Whenever equipped creature deals combat damage to a player, create a 1/1 colorless Thopter artifact creature token with flying.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Flying
{T}, Exile two cards from your graveyard: Add one mana of any color.

Enchant creature with flying
Enchanted creature can't attack or block, and it loses all abilities other than flying.

Wings of Liberty enters the battlefield with a +1/+1 counter on it.
{1}: Move a +1/+1 counter from Wings of Liberty to equipped creature.
Equipped creature has flying.
Equip {1}

Equipped creature gets +1/+1 and has flying and haste.
Equip {3}

Archive 3 (As this enters the battlefield, shuffle the top three cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
You may cast the top card of the archived library. Whenever you do, copy that spell. You may choose new targets for the copy.

[+1]: Add {R} or {G}. You can't spend this mana to cast an Elf spell.
[–2]: Winona, the Heretic deals 4 damage to any target. If that target is an Elf, Winona deals 4 damage to that Elf's controller.
[–6]: Until end of turn, any time you could cast an instant, you may pay {R}. When you do, Winona deals 2 damage to any target.

Vigilance, reach
When Winter Widow enters the battlefield, you may destroy target creature with flying.

Exile the top four cards of your library. You may cast instant and/or sorcery cards exiled this way until the end of your next turn.

Wise Old Oak enters the battlefield tapped unless you control a basic Forest.
{T}: Add {G}.
{3}{G}{G}: Until end of turn, Wise Old Oak becomes a 4/4 green Treefolk creature with “Whenever this creature deals combat damage to a player, draw a card.” It's still a land.

{T}: Add {R}. Put a charge counter on Wistful Automaton.
Remove three charge counters from Wistful Automaton: Transform it.

When Wistful Fox enters the battlefield, reveal the top eight cards of your library. You may put a creature card from among them into your hand. Put the rest on the bottom of your library in a random order.

Deathtouch
{T}: Add one mana of any color.

Menace
Crew 2 (Tap any number of creatures you control with total power 2 or greater: This Vehicle becomes an artifact creature until end of turn.)

When Witch's Invitation enters the battlefield, you may put a -1/-1 counter on target creature.
{2}, {T}: Tap target creature with a -1/-1 counter on it.

Trample
Vanishing 3 (This permanent enters the battlefield with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

When Wolfbriar Sapling enters the battlefield, if you control seven or more lands, create a 2/2 green Wolf creature token.

{T}: Add {C}.
{3}, {T}: Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

When Woodcutter's Hatchet enters the battlefield, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Equipped creature gets +2/+2.
Equip {2}