Dictate of Karametra | Enchantment | | Flash
Whenever a player taps a land for mana, that player adds one mana of any type that land produced. | Noah Bradley
Heroes' Bane | Creature | Hydra | Heroes' Bane enters the battlefield with four +1/+1 counters on it.
{2}{G}{G}: Put X +1/+1 counters on Heroes' Bane, where X is its power. | Raymond Swanland
Nessian Game Warden | Creature | Beast | When Nessian Game Warden enters the battlefield, look at the top X cards of your library, where X is the number of Forests you control. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order. | Vincent Proce
Pheres-Band Thunderhoof | Creature | Centaur Warrior | Heroic — Whenever you cast a spell that targets Pheres-Band Thunderhoof, put two +1/+1 counters on Pheres-Band Thunderhoof. | Christopher Moeller
Ajani, Mentor of Heroes | Legendary Planeswalker | Ajani | +1: Distribute three +1/+1 counters among one, two, or three target creatures you control.
+1: Look at the top four cards of your library. You may reveal an Aura, creature, or planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
−8: You gain 100 life. | Aaron Miller
Fleetfeather Cockatrice | Creature | Cockatrice | Flash (You may cast this spell any time you could cast an instant.)
Flying, deathtouch
{5}{G}{U}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) | Matt Stewart
Kruphix, God of Horizons | Legendary Enchantment Creature | God | Indestructible
As long as your devotion to green and blue is less than seven, Kruphix isn't a creature.
You have no maximum hand size.
If you would lose unspent mana, that mana becomes colorless instead. | Daarken