All creature cards you own with flash are instants in addition to their other types.
Whenever you cast another spell with two or more card types, you may draw a card, then discard a card.
If you don’t draw a card, you don’t discard a card.
12-11-2019
wotc
Some playtest cards have unusual type lines. To determine whether those cards have a card type not listed above, refer to that card’s rulings on Gatherer.wizards.com.
12-11-2019
wotc
The card types that can normally appear on spells are artifact, creature, enchantment, instant, land, planeswalker, sorcery, and tribal. Legendary, basic, and snow are supertypes, not card types.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.