Blitz [cost] means You may cast this card by paying [cost] rather than its mana cost, If this spells blitz cost was paid, sacrifice the permanent this spell becomes at the beginning of the next end step, and As long as this permanents blitz cost was paid, it has haste and When this permanent is put into a graveyard from the battlefield, draw a card. Casting a spell for its blitz cost follows the rules for paying alternative costs in rules 601.2b and 601.2fh
Gigantosaurus is a traditional foil, full-art card
If the target creature is an illegal target when Enter the Enigma tries to resolve, it won't resolve and none of its effects will happen
Next is our Top Five, and we have one legendary creature, one sorcery, one planeswalker, one enchantment and one instant, so one of each of five things, but which ones