mtg cards like sun titan - Stories Through you may return target permanent card with mana value 3 or less from your graveyard to the battlefield. Suntitan

Pillar of the Paruns is a great way to get mana to cast Niv-Mizzet, but its extremely restrictive in deckbuilding, since it doesnt contribute at all to monocolored spells or activated abilities

Rhonas the Indomitable parties with some green beasts if you need to wake it up eventually, because I guess thats part of how you win here

Just getting to draw a card and ping a target after an opponent plays a spell is very good

The card could also have been viewed as a simple "goodie" for visitors to D23 not accustomed to TCGs and card certification

Each of these is a land card that has three different types, which means you can fetch them using any card that can get any one of those land types from the library