Legality depends on the tournament format -- Flourishing Defenses can be legal in some formats and banned or restricted in others
Thunderclap Drake makes casting your spells easier by reducing your instant and sorcery spells by one generic mana, while also giving you a chance to copy it a ton of times, depending on how often youve cast your commander.
It is a 2/2 with vigilance, so itll come down quickly and can attack and block without skipping a beat
In Disney Lorcana, for example, the way my collection was planned was challenged first by the introduction of the double-Ink cards and, more recently, by the introduction of Set Rotation that limits the cards that can be used in Organized events that are not using the Unlimited format
OP06-022 | L | LEADER Yamato Attribute Strike Block icon 2 Effect [Double Attack] (This card deals 2 damage.) [Activate: Main] [Once Per Turn] If your opponent has 3 or less Life cards, give up to 2 rested DON