Wizard's Rockets enters the battlefield tapped. {X}, {T}, Sacrifice Wizard's Rockets: Add X mana in any combination of colors. When Wizard's Rockets is put into a graveyard from the battlefield, draw a card.
{T}: Exile target instant or sorcery card from a graveyard. Roll a d20. Activate only as a sorcery. 1—9 | Copy that card. You may cast the copy. 10—19 | Copy that card. You may cast the copy by paying {1} rather than paying its mana cost. 20 | Copy each card exiled with Wizard's Spellbook. You may cast any number of the copies without paying their mana costs.
When Wolfrider's Saddle enters the battlefield, create a 2/2 green Wolf creature token, then attach Wolfrider's Saddle to it. Equipped creature gets +1/+1 and can't be blocked by more than one creature. Equip {3}
Permanents you control have ward {2}. At the beginning of your end step, mill two cards, then exile a nonland card at random from your graveyard. Copy it. You may cast the copy without paying its mana cost.
Prototype {2}{G}{G} — 3/3 When Woodcaller Automaton enters the battlefield, if you cast it, untap target land you control. It becomes a Treefolk creature with haste and base power and toughness equal to Woodcaller Automaton's power and toughness. It's still a land.
Equipped creature gets +1/+0. Whenever equipped creature blocks or becomes blocked by a Vampire, destroy that creature. It can't be regenerated. Equip {1}
When Woodweaver's Puzzleknot enters the battlefield, you gain 3 life and get {E}{E}{E}. {2}{G}, Sacrifice Woodweaver's Puzzleknot: You gain 3 life and get {E}{E}{E}.
If you would create one or more artifact tokens, instead create those tokens plus an additional Map token. {1}{U}, {T}: Create a token that's a copy of target artifact token you control.
When Wort, the Raidmother enters the battlefield, create two 1/1 red and green Goblin Warrior creature tokens. Each red or green instant or sorcery spell you cast has conspire.
Lands you control have "{T}: Add one mana of any color." [+1]: Up to one target land you control becomes a 3/3 Elemental creature with vigilance, hexproof, and haste until your next turn. It's still a land. [–2]: Mill three cards. You may put a permanent card from among the milled cards into your hand. [–7]: You get an emblem with "You may play lands and cast permanent spells from your graveyard."
[+1]: Reveal the top four cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard. [0]: Put any number of land cards from your hand onto the battlefield tapped. [–3]: Create a green Treefolk creature token with reach and "This creature's power and toughness are each equal to the number of lands you control." [–8]: Return all permanent cards from your graveyard to your hand. You get an emblem with "You have no maximum hand size."
[+1]: Return up to one target land card from your graveyard to your hand. [–1]: Wrenn and Six deals 1 damage to any target. [–7]: You get an emblem with "Instant and sorcery cards in your graveyard have retrace."
Islandwalk, swampwalk Whenever Wrexial, the Risen Deep deals combat damage to a player, you may cast target instant or sorcery card from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead.