mtg legends booster box - - Legends with 20 cards per pack Legends Booster pack opened! Lets

Obelisk's Slime should require that a monster is Tributed, which can be done in multiple ways outside of Obelisk's 'two Tributes to Raigeki the opponent's board' effect

Attack #2: [UL2] Giga Impact: 200 damage

but "just" killing a creature two-for-one was its most common role

UR Ultra Rare Ebon High Magician X DARK Rank 7 [ SpellcasterXyzEffect ] ATK 2300 DEF 2800 2 Level 7 Spellcaster monsters While this card has material, you can activate a Quick-Play Spell Card or a Trap Card from your hand during your opponent's turn by detaching 1 material from this card at activation

The number of creatures that have died that turn is checked as the last ability resolves