March of the Machine: The Aftermath

Calix, Guided by Fate | Legendary Enchantment Creature | Human Druid | Constellation — Whenever Calix, Guided by Fate or another enchantment enters the battlefield under your control, put a +1/+1 counter on target creature. Whenever Calix or an enchanted creature you control deals combat damage to a player, you may create a token that's a copy of a nonlegendary enchantment you control. Do this only once each turn. | PINDURSKI

Sarkhan, Soul Aflame | Legendary Creature | Human Shaman | Dragon spells you cast cost {1} less to cast. Whenever a Dragon enters the battlefield under your control, you may have Sarkhan, Soul Aflame become a copy of it until end of turn, except its name is Sarkhan, Soul Aflame and it's legendary in addition to its other types. | Eric Wilkerson

Samut, Vizier of Naktamun | Legendary Creature | Human Warrior Cleric | First strike, vigilance, haste Whenever a creature you control deals combat damage to a player, if that creature entered the battlefield this turn, draw a card. | Jarel Threat