Choose one or both —
• Target Kraken, Leviathan, Octopus, or Serpent creature you control gets +2/+1 until end of turn.
• Target creature you control fights target creature you don't control.

Search your library for a basic land card, reveal it, then shuffle. If you control six or more lands, put it onto the battlefield tapped. Otherwise, put it into your hand.

Search your library for a basic land card, put it onto the battlefield, then shuffle.

Enchant creature
When Gargantuan's Gluttony enters, put three +1/+1 counters on enchanted creature.
Whenever enchanted creature attacks, create a Food token.

Until end of turn, target creature gets +X/+X, where X is the number of differently named lands you control.

When Golden Age enters, you may sacrifice a land. If you do, search your library for a land card, put it onto the battlefield, then shuffle.
You've cast a multicolored spell this turn.

Look at the top seven cards of your library. You may put an artifact card, a creature card, an enchantment card, a land card, and/or a planeswalker card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Enchant creature
When Grasp of the Yeti enters, you may destroy target creature with flying, artifact, or enchantment.
Enchanted creature gets +3/+3.

Search your library for a basic land card, put it into the battlefield tapped, then shuffle. If this spell's flashback cost was paid, search your library for a land card rather than a basic land card.
Flashback—{G}, Sacrifice a land.

Target creature gets +4/+4 until end of turn.

At the beginning of your upkeep, you may exile target multicolored card from your graveyard. You may cast a copy of it this turn.

At the beginning of your end step, if you control two or more other enchantments, create a 1/1 white Human creature token.

Put a hexproof counter on target creature you control. At the beginning of the next end step, remove a counter from that creature.

Enchant land
Enchanted land is a 4/4 Dryad creature with reach, vigilance, and haste. It's still a land.
When enchanted land dies, return it to its owner's hand.

Target creature gets +2/+2 until end of turn. If you've cast another instant or sorcery spell this turn, put a +1/+1 counter on it.

Choose target creature you control. Whenever that creature deals combat damage to a player this turn, draw that many cards. If {R} was spent to cast this spell, it gains trample until end of turn. If {W} was paid to cast this spell, it gets +1/+1 until end of turn.

Enchant land
When International Development enters, make a pledge.
Enchanted land has “{T}: Add two mana of different colors.”

Whenever a creature you control attacks alone, it fights up to one target creature defending player controls.

Enchant creature
Whenever enchanted creature attacks, create a Treasure token.
If enchanted creature would die, instead sacrifice Invest and return that creature to its owner's hand.

Create a 1/2 green Spider creature token with reach for each color of mana spent to cast this spell.

At the beginning of your end step, untap another permanent. Then if it's your first turn of the game or you discarded a card named Leystone of Growth this turn, put a growth counter on that permanent. It gains “{T}: Add one mana of any type.”
Cycling {G}

Whenever you cast an instant spell, up to one target creature gets +2/+2 until end of turn.
Whenever you cast a sorcery spell, reveal the top card of your library. If its mana value is less than the greatest power among creatures you control, put it into your hand.

Enchant land
When Lightvein Discovery enters, put a +1/+1 counter on target creature you control.
Enchanted land has “{T}: Add two mana of different colors.”

Until end of turn, target creature gets +2/+2 and gains trample and “Whenever this creature deals combat damage to a player, return target permanent card with mana value less than or equal to the damage dealt from your graveyard to your hand.”

Target creature you control gets +2/+1 until end of turn. It fights up to one target creature you don't control.