When Clarion Cathars enters the battlefield, create a 1/1 white Human creature token.

Flying

<i>Confounding Clouds</i> — When Juvenile Mist Dragon enters the battlefield, for each opponent, tap up to one target creature that player controls. Each of those creatures doesn't untap during its controller's next untap step.

Flying

At the beginning of your end step, if a permanent you controlled left the battlefield this turn, create a 1/1 white Pegasus creature token with flying.

When Prophetic Prism enters the battlefield, draw a card.

, : Add one mana of any color.

<i>Conjure Elemental</i> — : Untap target land you control. It becomes an 8/8 Elemental creature with trample and haste until end of turn. It's still a land.

: Put an oil counter on The Filigree Sylex.

, Sacrifice The Filigree Sylex: Destroy each nonland permanent with mana value equal to the number of oil counters on The Filigree Sylex.

, Remove ten oil counters from among permanents you control and sacrifice The Filigree Sylex: It deals 10 damage to any target.

When Veteran Charger enters the battlefield, choose a creature card in your hand. It perpetually gets +2/+2.