msem-instigator

{U}, Put a travel counter on Endless Discoveries: Draw a card. This ability costs {1} more to activate for each travel counter on Endless Discoveries.
{3}{U}{U}, Sacrifice Endless Discoveries: Return target instant or sorcery card with mana value less than or equal to the number of travel counters on Endless Discoveries from your graveyard to your hand.

Until end of turn, you may cast target creature card in your graveyard without paying its mana cost. When it enters this turn, it gains haste and menace. Exile it at the beginning of the next end step.

Enchant creature
Enchanted creature attacks each combat if able.
At the beginning of your upkeep, Eternal Rage deals 2 damage to enchanted creature's controller.

You may play an additional land this turn.
Draw a card.

Exile the top two cards of your library. You may play one of them until the end of your next turn.
Motley — If there are five or more names among nonland permanents you control, you may play both of them until the end of your next turn instead.

Target creature gets -1/-1 until end of turn. If that creature is tapped, it gets -3/-3 until end of turn instead.

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

Frondpond Grotto enters tapped unless you played it from exile.
{T}: Add {U} or {B}.

Flying
This spell can't be countered.
When Frostbreath Dragon enters, tap target creature. It doesn't untap during its controller's next untap step.
Whenever Frostbreath Dragon becomes the target of a spell or ability, counter it unless its controller pays {2} and discards a card.

Each land you sacrifice while casting Frostfire Hulk pays for {1}.
Frostfire Hulk enters with a +1/+1 counter for each land card in your graveyard.
Sacrifice Frostfire Hulk: It deals X damage to target creature or planeswalker, where X is the number of +1/+1 counters that were on it. Activate only as a sorcery.

Frozen Hinterlands enters tapped.
{T}: Add {W} or {U}.
{1}{W}{U}: Until end of turn, Frozen Hinterlands becomes a 4/3 white and blue Spirit creature with with prowess and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)

Flying, vigilance
At the beginning of your upkeep, if you have 10 or more life than your starting life total, put a +1/+1 counter on each other creature you control.

Search your library for three land cards with different names, reveal them, then shuffle. Put one of those cards onto the battlefield, one into your hand, and one into your graveyard.

Equipped creature gets +1/+0 and has wither. (It deals damage to creatures in the form of -1/-1 counters.)
Equip {2}

Whenever another nontoken creature you control enters, if it doesn't share a name with another creature you control or a creature card in your graveyard, put a +1/+1 counter on Guardian of the Divergent.

Flying
If a source you control would deal noncombat damage to a permanent or player, you may have it deal damage equal to Hadak's power instead.

If you would gain life, you gain twice that much life instead.
If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.
At the beginning of your end step, untap up to two lands.

Hazy Coppice enters tapped.
{T}: Add {U} or {B}.
{2}{U}{B}: Until end of turn, Hazy Coppice becomes a 4/4 blue and black Bird creature with with flying and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)

Deathtouch
Whenever another creature dies, its controller discards a card at random.

Enchant creature
When Heartstrings leaves the battlefield, exile enchanted creature.
Whenever enchanted creature attacks or blocks, exile it at end of combat.

Target opponent may have you draw X cards. If they don't, reveal the top X cards of your library. Hell's Verdict deals damage to that player equal to the total mana value of cards revealed this way.

Enchant creature
Enchanted creature gets +2/+1.
When enchanted creature dies, return that card to its owner's hand.

Whenever Highpeak Rider attacks, search your library for a land card and put it onto the battlefield, then shuffle. Sacrifice that land at the beginning of the next end step.

(Activate each ability only once as a sorcery. You gain the realm's favor after activating them all.)
{W}: Put a first strike counter on target creature.
{1}{W}: Invigorate 2. (Choose a creature with the least power among creatures you control and put two +1/+1 counters on it.)
{2}{W}: Create two 1/1 white Soldier creature tokens.
Creatures you control with counters on them have flying and lifelink.

Return a permanent card from your graveyard to your hand.
Motley — If there are five or more names among nonland permanents you control, return two permanent cards from your graveyard to your hand instead.