Million Sharded Mirror7
Artifact Xt, sacrifice Million Sharded Mirror: Put X tokens onto the battlefield that's a copy of target creature. That tokens has haste and "At the beginning of the end step, exile this permanent."
Haggo the Impatient1RR
Legendary Creature - Berserker Advisor
Haste R, discard a card: draw a card. You can repeat this process. If you do, tap ~. ~ deals 2 damage to you. Activate this ability only if ~ untapped. Today, Haggo was angry. And day ago. And week ago. And...
2/2
Next:
Lhurgoyf Flagbearer
Samurai Survivor
Harpy Hag
Venser Compleated3WUB
Legendary Creature - Zombie Wizard
Hexproof t, pay target nonland permanent's mana cost: gain control of that permanent. You can pay Phyrexian mana rather mana of the same color this way.
2/3
Next: creature with Rigger type from Kaladesh set.
Uncovered plotUB
Sorcery
Will of the council - starting with you, each player votes for a player. Until your next turn, creatures with dethrone can attack player with most votes or tied to most votes as though he or she had most life.
Banana of the Vale2
Artifact
When Banana of the Vale enters the battlefield, until end of turn, attacking Ape creatures you control gains basic landwalk of you choice and -1/-1 for each attacking Ape beyond the first.
Whenever Ape you control deals combat damage to a player, sacrifice Banana of the Vale.
CatdogUG
Creature - Cat Hound
Vigilance, trample
Whenever Catdog attacks, it gains +1/-1 until end of turn.
Whenever Catdog blocks, it gains -1/+1 until end of turn.
2/2
Angelic Choir1WW
Enchantment
Exalted
Whenever a creature your control attacks alone, choose one:
- prevent all damage that would be dealt to that creature;
- you gain X life, where X is the number of white creatures you control.
Choose both if you control an Angel.
Enchantment - Aura
Enchanted creature gets +2/+0.
At the beginning of combat on enchanted creature controller's turn, that player chooses an opponent at random. Enchanted creature attacks that player this combat if able.
When Love and Hate enters the battlefield, choose a creature type.
Whenever you cast a spell of the chosen type, you may gain 2 life.
Whenever an opponent casts a spell of the chosen type, you may have Love and Hate deal 2 damage to that opponent. Sending shivers up and down my spine...
Gideon becoming an Ally counts as he entered the battlefield? Sounds weird.
Veteran Warleader can tap Gideon, for example.
More interesting, Jwari Shapeshifter can enter the battlefield as a copy of Gideon (he is not even legendary)
Artifact
Xt, sacrifice Million Sharded Mirror: Put X tokens onto the battlefield that's a copy of target creature. That tokens has haste and "At the beginning of the end step, exile this permanent."
Next:
Maid of Steel
Look into Eyes
Officerberus
Legendary Creature - Berserker Advisor
Haste
R, discard a card: draw a card. You can repeat this process. If you do, tap ~. ~ deals 2 damage to you. Activate this ability only if ~ untapped.
Today, Haggo was angry. And day ago. And week ago. And...
2/2
Next:
Lhurgoyf Flagbearer
Samurai Survivor
Harpy Hag
Legendary Creature - Zombie Wizard
Hexproof
t, pay target nonland permanent's mana cost: gain control of that permanent. You can pay Phyrexian mana rather mana of the same color this way.
2/3
Next: creature with Rigger type from Kaladesh set.
Sorcery
Will of the council - starting with you, each player votes for a player. Until your next turn, creatures with dethrone can attack player with most votes or tied to most votes as though he or she had most life.
Next:
Find a Flaw
Abnormalize
Maid of Steel
Artifact
When Banana of the Vale enters the battlefield, until end of turn, attacking Ape creatures you control gains basic landwalk of you choice and -1/-1 for each attacking Ape beyond the first.
Whenever Ape you control deals combat damage to a player, sacrifice Banana of the Vale.
Next:
Officerberus
Look into Eyes
Abnormalize
Creature - Cat Hound
Vigilance, trample
Whenever Catdog attacks, it gains +1/-1 until end of turn.
Whenever Catdog blocks, it gains -1/+1 until end of turn.
2/2
Next
Drake Germ
Vedalken Processor
Lizard Wizard
Enchantment
Exalted
Whenever a creature your control attacks alone, choose one:
- prevent all damage that would be dealt to that creature;
- you gain X life, where X is the number of white creatures you control.
Choose both if you control an Angel.
Next:
Bear Shock
Officerberus
Lavaathan
Enchantment - Aura
Enchanted creature gets +2/+0.
At the beginning of combat on enchanted creature controller's turn, that player chooses an opponent at random. Enchanted creature attacks that player this combat if able.
Next:
Boiling Witch
Abnormalize
Lavaathan
Artifact creature - Gargoyle
Flash
Flying, first strike, deathtouch
1/2
Next:
Lavaathan
Markov Mansion Maid
Mariri, the Burning Town
Creature - Hound
Vigilance
Narset's Companion gains prowess as long as you control a Mountain or Island.
2/3
Enchantment
When Love and Hate enters the battlefield, choose a creature type.
Whenever you cast a spell of the chosen type, you may gain 2 life.
Whenever an opponent casts a spell of the chosen type, you may have Love and Hate deal 2 damage to that opponent.
Sending shivers up and down my spine...
Next:
Lavaathan
Ninja Slayer
Asterion the Unstoppable
Creature - Human Soldier
Whenever Benalish Savior and at least one other creature attack, prevent all damage that would be dealt to Benalish Savior this turn.
3/2
Next: Werebeast creature with transform from uncharted Innistrad region (Return to Innistrad)
Veteran Warleader can tap Gideon, for example.
More interesting, Jwari Shapeshifter can enter the battlefield as a copy of Gideon (he is not even legendary)