Flying
Discard a creature card: This creature gets +2/+2 until end of turn.

As this artifact enters, choose an opponent and a card name other than a basic land card name.
The chosen player reveals each card they draw.
When the chosen player draws a card with the chosen name, sacrifice this artifact. If you do, this artifact deals 10 damage to that player.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
When Commander Greven il-Vec enters, sacrifice a creature.

, Discard a card: Put a +1/+1 counter on this creature or this creature gains flying, first strike, or trample. (This effect lasts indefinitely.)

This creature can't attack unless defending player controls an Island.

Trample
As this creature enters, pay any amount of life.
Minion of the Wastes's power and toughness are each equal to the life paid as it entered.

Skip your draw step.
Whenever you play a card, draw a card.
Your maximum hand size is two.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

At the beginning of each upkeep, create a 1/1 green Saproling creature token.