"The bogs are deeper than you realize. Most of the space beneath the surface is taken up by these enormous karoks. You might think your feet are touching the bottom. They're probably not." —Gyome, Witherbloom chef
You may pay {3}{G} rather than pay this spell's mana cost. Search your library for up to four basic land cards and reveal them. Put one of them onto the battlefield tapped under an opponent's control if the {3}{G} cost was paid. Put two of them onto the battlefield tapped under your control and the rest into your hand. Then shuffle.
Look at the top five cards of your library. You may put any number of them into your hand and the rest into your graveyard. You lose 3 life for each card you put into your hand this way.
Double strike Magecraft — Whenever you cast or copy an instant or sorcery spell, return target nonlegendary creature card from your graveyard to your hand.
As an additional cost to cast this spell, you may sacrifice any number of creatures. This spell costs {2} less to cast for each creature sacrificed this way. Each opponent sacrifices a creature of their choice. Create a 3/6 black and red Avatar creature token with haste and "Whenever this creature attacks, it deals 3 damage to each opponent."
Whenever an opponent activates an ability that isn't a mana ability, Flamescroll Celebrant deals 1 damage to that player. {1}{R}: Flamescroll Celebrant gets +2/+0 until end of turn.
Discard a card: Return Jadzi, Oracle of Arcavios to its owner's hand. Magecraft — Whenever you cast or copy an instant or sorcery spell, reveal the top card of your library. If it's a nonland card, you may cast it by paying {1} rather than paying its mana cost. If it's a land card, put it onto the battlefield.
You may put any number of land cards from your hand onto the battlefield. Then if you control eight or more lands, you may discard a card. If you do, return Journey to the Oracle to its owner's hand.
{T}: Exile the top card of your library. If it's a land card, put it into your hand. Otherwise, put a study counter on it. {4}{G}: Create a 0/0 green and blue Fractal creature token. Put a +1/+1 counter on it for each different mana value among nonland cards you own in exile with study counters on them.
Flying {X}{U}{U}, {T}: Exile the top X cards of your library and put a study counter on each of them. Then you may put a card you own in exile with a study counter on it into your hand.
Whenever an opponent attacks one or more planeswalkers you control, put a loyalty counter on each planeswalker you control. Whenever a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card.
[+1]: You may discard a card. If you do, draw a card. If a creature card was discarded this way, draw two cards instead. [–2]: Return target creature card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of your next upkeep. [–7]: You get an emblem with "Whenever a creature you control enters, it deals damage equal to its power to any target."
{T}, Discard a card: Create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life." {1}, {T}: Each opponent mills cards equal to the amount of life you gained this turn. {4}, {T}: Exile four target cards from a single graveyard. Draw a card.