Enchant permanent
Enchanted permanent can't attack, block, or wander.

When Forgemaster Dreadnought enters, create three Treasure tokens.
Spellcharge 9

Choose target card in another player's graveyard other than a basic land. Search its owner's graveyard, hand, and library for any number of cards with the same name as that card and exile them. If their library is searched this way, they shuffle it. You gain 1 life for each card exiled this way. That player draws a card for each card exiled from their hand this way.
Flashback {3}{B}

Whenever Forgotten Cultivator attacks, mill three cards. Return a permanent card from among the milled cards to your hand.
Spellcharge 4

When this land enters, sacrifice it. If you do, search your library for a basic Swamp or Forest card, put it onto the battlefield tapped, then shuffle.
{2}{B}{B}{G}{G}, Discard this card: Return up to one target creature card and up to one target enchantment card from your graveyard to your hand.

This land enters tapped unless you control one or fewer other lands.
{T}: Add {B} or {G}.
Cycling {2}

Fortress Arena enters tapped.
{T}: Add {R} or {W}.
{2}{R}{W}, {T}, Sacrifice Fortress Arena: Draw a card.

Choose one —
• Frag deals 4 damage to target creature.
• Destroy target artifact.

Flying
If a source would deal 2 or more damage to Fragile Soul, prevent that damage.

Whenever Freightyard Scrappers attacks, create a Treasure token.
{X}, Sacrifice an artifact: Return target artifact card with mana value X or less from your graveyard to the battlefield. Activate only as a sorcery and only once each turn.

Create three Berry tokens, then sacrifice any number of Berries. For each Berry sacrificed this way, creatures you control get +1/+1 until end of turn.

When this creature enters, target creature you control gets +2/+2 until end of turn.
Plainscycling {2}

Frigid Highlands enters tapped unless you control an Island.
{T}: Add {R} or {G}.

Revered
Whenever this creature attacks, add {R}. Until end of turn, you don't lose this mana as steps and phases end.

If one or more +1/+1 counters would be put on a permanent you control, that many plus one +1/+1 counters are put on that permanent instead.

{1}{B}, Exile two permanent cards from your graveyard: Choose one —
• Create two 1/1 green Saproling creature tokens.
• Exile the top card of target opponent's library. You may play that card for as long as it remains exiled, and mana of any type can be spent to cast it.

Target creature you control gains double strike until end of turn. It deals damage equal to its power to each of up to two other targets.

Fabric — When this enchantment enters, target player reveals a number of cards from their hand equal to the number of enchantments you control. You choose one of them. That player caches that card.
Creatures you control get +1/+1.

Whenever this Subroutine runs, you may play target permanent card from your graveyard this turn. It enters with a finality counter on it.

Enchant creature
Enchanted creature attacks each combat if able.
Whenever enchanted creature attacks, teach it trample.

Put a +1/+1 counter on target creature, then it gets your choice of +1/+1 or lifelink until end of turn.

As an additional cost to cast instant and sorcery spells, you may pay {X}, where X is that spell's mana value. If you do, copy that spell, and you may choose new targets for the copy.
Spellcharge 4

{G}, {T}, Sacrifice an artifact or enchantment: Cache the top card of your library face down. Activate only as a sorcery.

{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast Shrine spells or activate abilities of Shrines.

[+1]: Discard up to two cards, then draw that many cards.
[–1]: You may sacrifice a creature. When you do, return target creature card with equal or lesser mana value from your graveyard to the battlefield tapped.
[–2]: You may exile a creature card from your graveyard. When you do, Garren deals damage equal to the exiled creature's power to target creature.