Siren's Call [Alpha Edition] Champions of Kamigawa put a -1/-1 counter on

put a -1/-1 counter on each creature target player controls

Set: Beta Edition Type: Instant Rarity: Common Cost: {G} Target creature gets +3/+3 until end of turn

destroy all lands instead

It *wants* to remain a mystery

Set: Alpha Edition Type: Creature — Dwarf Rarity: Uncommon Cost: {2}{R} {T}: Destroy target Wall

Siren's Call [Alpha Edition] Champions of Kamigawa put a -1/-1 counter onSet: Alpha Edition Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn, before attackers are declared. Creatures the active player controls attack this turn if able. At the beginning of the next end step, destroy all non Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.