Id recommend keeping one instant removal spell in hand to respond if an opponent gives their creature trample very few creatures have it naturally in this set, so its possible to just chump and wait for the Blitzball Shot or Gladiolus trigger
If there are any additional costs to cast it, the mana spent to pay those costs counts as well
TRIVIA: For some reasons, the 2 Portal Listbcards weren't included in the Simplified Chinese Two-Player Starter Set
There must be four or more card types among cards in your graveyard in order for these abilities to trigger
It's effective in formats that don't have Reanimate or Animate Dead, and can serve as a tertiary backup for those in something like Vintage Cube
Ghalta, Primal Hunger Ive seen this creature be cast as early as turn 3 or 4, and I can imagine some play patterns allow you to cast it even sooner