Hellkite Charger [Zendikar]Set: Zendikar Type: Creature Dragon Rarity: Rare Cost: {4}{R}{R} Flying, haste Whenever Hellkite Charger attacks, you may pay {5}{R}{R}. If you do, untap all attacking creatures and after this phase, there is an additional combat phase.

sacrifice Conversion unless you pay {W}{W}

Set: Judge Gift Cards 2010 Type: Artifact Creature — Phyrexian Dreadnought Rarity: Rare Cost: {1} Trample

exile one face down

Set: Ixalan Prerelease Promos Type: Artifact // Land Rarity: Rare Cost: {4} Instant and sorcery spells you cast cost {1} less to cast

Nicol Bolas would not rest until he was restored to his former glory

but the same can't be said for trees on the wind

Set: Magic 2010 Type: Creature — Elf Druid Rarity: Rare Cost: {1}{G}{G} Other Elf creatures you control get +1/+1

its controller gains control of Act of Authority

When Purity is put into a graveyard from anywhere

Set: Unstable Type: Enchantment Rarity: Rare Cost: {4}{R}{G} At the beginning of each opponent's upkeep

Set: Sun & Moon: Cosmic Eclipse Type: Dragon Rarity: Holo Rare Retreat cost: Colorless

When Avatar of Discord enters the battlefield