Current text: Phasing When Ertai's Familiar phases out or leaves play, put the top three cards of your library into your graveyard
If, for example, an opponent tries to exile your Valgavoth, Terror Eater with Scavenging Ooze, you can shuffle it into your deck to keep it safe until a more opportune moment to reanimate it arises
Whenever you Populate, you make a copy of an existing creature token
The odds on this are very, very low: as laid out in the offering rates, getting a gold card from any pack you open has the following odds associated with it: Cards 1-3: 0% Card 4: 0.040% Card 5: 0.160% Wonder Picks
Common Common cards have a solid black circle symbol, as pictured
Houndoom can be obtained from Wisdom of Sea and Sky: Ho-Oh and Wisdom of Sea and Sky: Lugia packs in the Wisdom of Sea and Sky set