msem-instigator

When Lightblessed Claymore enters, attach it to target creature you control.
Equipped creature gets +2/+0 and has lifelink.
Equip {4}

Activated abilities cost {1} more to activate unless they're mana abilities.

Haste
At the beginning of each end step, if Lightning Ox dealt damage this turn, sacrifice it.

Lightning Ripple deals 4 damage divided as you choose among any number of target creatures and/or planeswalkers.

Lightning Strike deals 3 damage to any target.

If you would harmonize while this spell is on the stack, you may instead put three thunder counters on this spell.
Lightning and Thunder deals X damage to any target, where X is 3 plus the number of thunder counters on Lightning and Thunder.

Whenever Lightseeker Nymph perseveres, search your library for a basic land card, put it onto the battlefield tapped, then shuffle. (A creature perseveres when it survives damage.)

You may have Ligneous Enormity assign its combat damage as though it weren't blocked.
Madness {3}{G}{G} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Hexproof from spells cast from a graveyard
If a creature you control would die and that creature was the target of an instant or sorcery spell this turn, you may put it on top of its owner's library instead.

First mate — Each nonland card in your starting deck has “+1/+1 counter” or “harmonize” in its printed rules text. (If this card outside the game is your chosen first mate, you may swap it with a card in your opening hand.)
Once each turn, if one or more +1/+1 counters would be put on a permanent you control, you may put twice that many of those counters on it instead.
Once each turn, if you would trigger a harmony ability of a permanent you control, you may have that ability trigger twice instead.

Advance {2} (Cast this for {2} to advance it as it enters. {2}: Advance this as a sorcery.)
Equipped creature gets +1/+1 for each artifact you control.
Equipped creature must be blocked by an additional creature for each time it and this artifact have advanced this turn to be blocked.
Equip {3}

Haste
Deploy 5 (As this enters, you may tap any number of other creatures you control with total power 5 or more.)
When Line Officer enters deployed, it deals 3 damage to each creature your opponents control.

Trample
{2}{R}{G}: Creatures you control get +1/+1 until end of turn.

When Lingering Guide enters, mill two cards.

Trample
Engage (This creature must be blocked each combat if able.)
When Lion's Vanguard enters, creatures you control get +3/+3 and gain trample and haste until end of turn.

When Lionfrill Hunter enters or when you cycle it, put X +1/+1 counters on another target creature you control, where X is the number of cards with a cycling ability in your graveyard.
Cycling {3}{R}{G} ({3}{R}{G}, Discard this card: Draw a card.)

This spell costs {2} less to cast if it targets a multicolored card.
Return target card from your graveyard to your hand.

When Little Pig enters, if you control a land named Far-Off Lands, put two +1/+1 counters on it.

Reveal the top five cards of your library. Put a creature or enchantment card from among them into your hand. Put the rest on the bottom of your library in a random order.

When Lively Prop dies, look at the top three cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest into your graveyard.

Up to two target creature cards in your graveyard gain revive until end of turn. Their revive costs are equal to their mana cost. (Pay that creature's mana cost, Exile that card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

Ward—Pay 3 life.
Whenever you cast an instant or sorcery spell, recruit. (Create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)

Trample
Whenever Living Archipelago enters or attacks, up to two target lands you control voyage. (If they aren't being targeted by another spell or ability, they phase out.)
Whenever a land you control phases in, you may create a tapped token that's a copy of that land.

Whenever a land you control enters, create a 3/3 red and green Elemental creature token.

When Living Hoard enters, create a Treasure token.
{R}, Sacrifice an artifact: Living Hoard gets +2/+0 until end of turn.