Sudden spoiling says:
Sudden spoiling
instant 1bb
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Creatures target player controls become 0/2 and lose all abilities until end of turn.
ok so lets say other player play creature with haste, say Goblin Ruinblaster. now it is combat phase.
Can I in response to him declaring the Goblin Ruinblaster as an attacker and tapping him, i play Sudden spoiling? Then the goblin ruinblaster loses the haste and now is affected from summoning sickness and is removed from combat?